Here is what is new and changed in Firefox 82.0

Martin Brinkmann
Oct 20, 2020
Updated • Nov 1, 2020

The Firefox 82.0 Stable and Firefox ESR 78.4 release date is October 20, 2020. The new stable versions of the Firefox web browser are available via the browser's automatic updating functionality and as separate downloads.

All Firefox development channels are updated as well. Firefox Beta and Developer versions are moved to version 83 and Firefox Nightly is moved to version 84. Firefox for Android follows the stable desktop versioning.

Executive Summary

  • WebRender rollout continues.
  • Language Packs are updated in sync with Firefox updates starting with this release.
  • Firefox 68 ESR installations will be upgraded to Firefox 78 ESR automatically as the former has reached end of support.
  • Firefox 83 Stable, Firefox 83 for Android and Firefox 78.5 ESR will be released on November 17, 2020.

Firefox 82.0 download and update

mozilla firefox 82

The Firefox 82.0 and Firefox 78.4 ESR release date is October 20, 2020. Users should receive the new version automatically provided that automatic updating has not been disabled.

Note that this release information article is published prior to the official release, and that Firefox may not be available for a few hours on October 20, 2020 as a consequence.

Desktop users may select Menu > Help > About Firefox to check for updates manually. If a new update is detected, it is downloaded and installed on the device.

Manual downloads are also available. The following pages list direct downloads for supported Firefox channels (will be available later on September 22, 2020)

New features and improvements

Media improvements

Firefox's built-in media playback capabilities have been improved in this release. Most of the work went into the browser's Picture-in-Picture mode:

  • New look for the Picture-in-Picture button to make it easier to find.
  • Mac users may use Option-Command-Shift-Rightbracket that works before a video starts to play.

Firefox 82.0 on Windows supports DirectComposition for hardware decoded videos; this will improve CPU and GPU usage during playback and improve battery life at the same time.

Performance improvements

Mozilla engineers have improved the performance of Firefox in several meaningful ways in the new release. According to Mozilla

  • Firefox will open windows about 10% faster on Windows than before.
  • Session restore is 17% faster than before.
  • Websites with flexbox-based layouts load 20% faster.

Other changes

  • Downloads that originate from sandboxed iframes are blocked in Firefox 82.
  • Language packs are updated "in tandem" with Firefox updates to ensure that there is no delay in pushing out new language pack versions to users who have installed them.
  • Credit Card auto-fill data supports screen readers in the new version.
  • Print dialog errors for invalid form entries are reported to screen readers.
  • Screen reader features which report paragraphs do this correctly now in Firefox.
  • New articles are displayed when a webpage is saved to Pocket.

Firefox for Android

Firefox 82 for Android has been released.

Developer Changes

  • Network Monitor can be used to inspect server-side events [see bug 1640857)
  • Network Monitor's Message panel has been merged with the Response panel.
  • Color Picker is keyboard accessible on Windows.
  • Firefox supports the allow-downloads flag for iframe sandbox.
  • Media Session API is enabled by default. It can be used to customize media notifications and manage event handlers.

Known Issues

none listed.

Security updates / fixes

Security updates are revealed after the official release of the web browser. You find the information published here after release.


Additional information / sources

Here is what is new and changed in Firefox 82.0
Article Name
Here is what is new and changed in Firefox 82.0
The Firefox 82.0 Stable and Firefox ESR 78.4 release date is October 20, 2020. The new stable versions of the Firefox web browser are available via the browser's automatic updating functionality and as separate downloads.
Ghacks Technology News

Tutorials & Tips

Previous Post: «
Next Post: «


  1. Gareth Perks said on December 19, 2020 at 12:01 am

    @Martin Brinkmann
    Mozilla also silently changed the mouse wheel scroll smoothness, to be more Chrome-like. I personally don’t like it, and it only really hit me now that it’s a bit jerky.

    See this:

    Configs that I’ve reverted to to restore original smoothness:
    general.smoothScroll.mouseWheel.durationMinMS 200
    general.smoothScroll.mouseWheel.durationMaxMS 400

  2. AWM said on October 30, 2020 at 8:15 pm

    I now have zero trust in Mozilla there is a massive groundswell of reaction against the recent forced update to the Fireox for Android from established users of Firefox many of whom like me have been using browsers and eMail programs from the Netscape/fMozilla bloodline for more than two decades,

  3. Mothy said on October 22, 2020 at 11:44 pm

    I’m staying on 68.12 ESR yet as I just don’t need/want any of the features in the new ESR branch. As far as lack of security updates I have the system pretty locked down with other defensive layers so am not too concerned about it. Besides it’s not the first time I’m using old outdated software, used to use good ol’ Windows XP with Internet Explorer for a few years after its support ended and never had a single issue.

    1. SpywareFan said on October 23, 2020 at 4:36 pm

      +1, I cannot stand the last changes (chromification).
      …But I fear vulnerabilities, even with unwanted protocols disabled (see WebRTC) and SSL/TLS filtering enabled.

  4. nealis said on October 21, 2020 at 10:19 pm

    The Webrender is pretty nice. The font has changed to what whatever font you use in Windows so I noticed right away something change. The speed improvement is noticeable too.

    1. Anonymous said on November 18, 2020 at 1:07 am

      font changes are bullshit. nothing looks right anymore. no information on how to fix it. completely ruined the main function of a browser

  5. Anonymous said on October 21, 2020 at 4:07 pm

    More credit card data storing and autofilling. More Pocket spam.

    Not sure about the privacy implications of the new MediaSession API:

    Some prefs that controled the invasiveness level of search engines removed, not sure if replaced by something else:

    On the good side, they finally stopped their years-old cross-site data leak:

    As for each new Firefox version, you can look at Arkenfox’s github to have some more information about what Mozilla is really doing:

    ToDo: diffs FF81-FF82

  6. VioletMoon said on October 21, 2020 at 3:34 am

    Yep, yep–all good. Seems a bit faster. Great news. Love Firefox; however, I am still using Chrome, for whatever reason, much more than I ever have.

    I think because some of the add-ons for Chrome don’t exist for Firefox; and numerous sites simply don’t work with Firefox–say a shopping site, checking out, and choosing PayPal. FF has a horrible time with that. Chrome–not an issue.

    1. SpywareFan said on October 21, 2020 at 10:10 am

      PayPal and the new caused problems @me too with (hardened) FF… Google “the cancer” is now almost everywhere, causing issues in all non google-spyware-chromium browsers configured to protect customers privacy/security and fight global mass surveillance.

      1. Iron Heart said on October 21, 2020 at 1:12 pm


        “Chromium” isn’t spyware, some bowsers based on Chromium (Chrome, Edge, Opera) would qualify for that term, others (Ungoogled Chromium, Vivaldi, Brave, Bromite) would not. Overgeneralizing hurts your argument. Firefox establishes a great many more unsolicited requests than UGC, Brave, Vivaldi etc. despite not being based on Chromium. Can you turn that behavior off in FF? Yes, but it is not the default most people would use, and in the end, you are just achieving the same result which you would also achieve with Ungoogled Chromium by default (no unsolicited requests whatsoever), so what’s the point?

        Furthermore, you should ask yourself why Google “the Cancer” is so successful. Might it have something to do with their products being generally good quality, the spyware included notwithstanding? The spyware aspect aside, most people are genuinely satisfied with what they have to offer and are seemingly not searching for oftentimes inferior alternatives.
        I myself have no problem using their products as long as spyware components are being removed (think Android custom ROMs, Chromium-based browsers like Brave). I see no reason to hate on their products just for the sake of it.

      2. SpywareFan said on October 22, 2020 at 5:21 pm

        Did I wrote about unwanted startup connections/hourly pings or about problems with (hardened) FF when a website uses “reChapchap The Goolag Spywa” or other goolag-spywa tracking tecniques that are unblockable with goolag-chromiums?
        Say whatever you want, remains the fact that Chromium “is controlled by google”.
        Goolag success is only because 80% of web surfers are ignorants, a lot of people have no time/will to find info about the sw they use.

      3. Iron Heart said on October 24, 2020 at 12:13 am


        No, Chromium isn’t controlled by Google, Google just happens to be the biggest contributor, but there are other notable ones as well like Microsoft, Amazon (Silk browser on Fire tablets uses Chromium), Samsung, Intel, Opera ASA etc. Chromium couldn’t and wouldn’t exist the way it does now without those outside contributions. Please research how Chromium is actually being developed before making any such statements.

        Again, you are overgeneralizing the fairly fragmented landscape of Chromium-based browsers. Some Chromium-based browsers have fingerprinting mitigations (Brave, Bromite), but most (Chrome, Edge, Opera, Vivaldi) do not. If that makes you happy, reCaptcha (which is what – I assume – you meant with that gobbledegook) fails multiple times as well for me, and I am using Brave. That makes my browsing more miserable, but goes to show that reCaptcha is having a hard time with my setup. Again, it simply depends on whether the developer of your browser cares and is willing to invest the R&D, anti-fingerprinting efforts aren’t limited to Firefox, that much is clear. Implying any such thing is just ignorant, as is stating that being vulnerable to fingerprinting is somehow an inherent flaw of Chromium (it demonstrably isn’t).

        I didn’t say that *all* Google products are good, I didn’t imply that reCaptcha is any good for example. Stating that reCaptcha is any good would be a silly notion, as it amounts to an annoyance and not much else. However, some Google products are genuinely good quality, for example Google Search and YouTube, finding alternatives for these that deliver comparable quality is frankly impossible so far. Some Google stuff like GMail is easy to replace, some stuff isn’t, and for the stuff that isn’t easy to replace so far, there seems to be a reason why Google is still the market leader (read: the alternatives suck). Again, I am not trying to excuse any spying aspects (I condemn those as much as anyone), I am merely referring to the quality of the products delivered by Google.

      4. SR said on November 12, 2020 at 9:29 pm

        @Iron Heart . . . re: Google Search . . . “finding alternatives that deliver comparable quality is frankly impossible so far.”

        Isn’t Startpage a “comparable quality” ‘alternative,’ since afaik it gets its hits from Google — i.e., you get Google search results without the snooping?

      5. SpywareFan said on October 24, 2020 at 10:22 am

        Please research how Chromium is actually being developed before making any such statements!!!
        “Chromium is controlled by Google, but it’s open-source software that anyone can use and modify.” Yes, anyone can modify, but removing Goovil spywa can cause breakage.
        “only developers approved by Google can actually make changes to the official Chromium code”, so developers must accept google policies/rules.
        And please remember that Brave devs are having a monthly hard time trying to remove all the nasty things Google is forcing inside of chromium.
        “Chromium maintains a private API for whitelisted components and extensions that aggregates debugging information about WebRTC sessions and uploads it to a Google server.”
        So don’t tell me that Goovil is only a contributor, because they want all of their trackwa/spywa code to remain inside of chromium.

        The contributors:
        Microsoft: best known as datagathering inOS developers and PC/workstation borkers, a corp. that relies on unpaid betatesters.
        Amazon: best known as the moneymaking machine that rely on low cost slavery.
        Samsung: best known for filling their phones with mandatory spywa (not at the levels of chinese xiaomi) and planned obsolescence.
        Intel: best known for backdoors. (+fusions and ghosts :P)
        Opera: best known as the Regime Browser makers.
        Hey, where are FakeBook and eBoy? They can be great contributors in developing new methods of surveillance and data gahterin’!

        Google CensorAdSearch has become useless.
        Google CensorAdTube has become trash.
        GMail is pure mass-spywa.
        Google is the market leader only because they are more evil than others.
        And they infected FF also!
        No, I have no intentions in contributing to google-chromium market share.

  7. Joe-Six-Pack said on October 21, 2020 at 12:04 am

    And I’m sure Firefox is more secure than ever since they fired ~250 employees.

    I have greater confidence than ever using Firefox, especially protecting my privacy and keeping me healthy and safe.

    1. Anonymous said on November 18, 2020 at 1:12 am

      FF didn’t fire 250 employees, Mozilla did. If you think all Mozilla does is work on FF, you are mistaken.

      1. Guest703 said on November 19, 2020 at 12:26 pm

        I’m sure that doesn’t change the fact that it’s headed for the dumpster at this rate. I hope not because Firefox is still the most customizable browser, but it’s so slow lately, I’m starting to lose hope it will ever be as fast as the new Edge Chromium.

  8. Haakon said on October 20, 2020 at 11:05 pm

    Waiting on 82.0.1…

    1. Haakon said on October 23, 2020 at 9:04 pm


      Mozilla Stops Firefox 82 rollout due to Numerous Issues

  9. Yuliya said on October 20, 2020 at 5:28 pm

    Again? I can’t believe mozilla’s claims when it comes to performance, it’s the whole firefox v57 all over again – marketing bs with no proof to validate it.
    Ah well, I’ll test it when I get home against Chromium in about four hours.

    1. Yuliya said on October 20, 2020 at 9:57 pm

      chromium v86 vs firefox v82

      chromium v85 vs firefox v79
      chromium v83 vs firefox v77
      chromium v81 vs firefox v73

      Mobile versions, ran off an Exynos Note 10+ (SM-N975F)
      firefox v82
      chromium v85

      Within the margin of error compared to previous versions; Exynos S10 (SM-G973F)
      chromium 83 v64-bit; chrome v83; firefox v80

      1. BSDetector said on October 21, 2020 at 6:26 am

        Firefox tests: controlled enviroment, multi-site, real-world sites, multi-device, multi-benchmarking tests, does not claim everyone gets the same perf :
        Yuilya tests: anecdotal, single benchmarking measurement

      2. BSDetector said on October 21, 2020 at 11:03 am

        Firefox: lists demonstrative and specific perf improvements relative to previous Firefox releases
        Yuliya: compares firefox to chrome on a completely different benchmark. Says “what?” when pointed out that anecdotal evidence is not scientific, proceeds to link to an unrelated 37 month old blog post about a single benchmark, with no context

      3. Yuliya said on October 21, 2020 at 2:15 pm

        Oh but it is, you see mozilla uses the same benchmark. I’m merely showing you how Chromium, a modern, secure and privacy-respecting, objectively superior browser; is almost twice as fast, and how mozilla’s claims are false, as firefox’ performance did not change in this release.

      4. LexiconHelper said on October 22, 2020 at 1:01 am

        anecdotal: not necessarily true or reliable, because based on personal accounts rather than facts or research
        scientific: based on or characterized by the methods and principles of science (similar to: technical, research-based, factual, knowledge-based, empirical)

        Yuliya: does a single test that doesn’t empirically measure the differences specifically for the items in question (such as flex) that gained perf improvements, and doesn’t use a control as a baseline

      5. Yuliya said on October 22, 2020 at 3:01 pm

        I did. Chromium is way faster than Firefox on three different devices.

  10. Albie said on October 20, 2020 at 5:06 pm

    On Linux Mint, installing the Firefox update via the update manager causes the browser not to load.

    Anyone else having this issue?

    Tor loads without difficulty.

    1. CogentFurby said on October 20, 2020 at 10:06 pm

      That’s why I delay allowing any FF latest edition to install at first release, and the Linux Kernel Version(5.8.0-23-generic) that that person is using from Mint 20 is an not a regular Update manager kernel update option even though is showing up in the update managers show installed Kernels’ available Kernel list. 5.4.0-52 is the latest kernel that’s offered to me via update manager’s normal channel and that newer kernel there with that listed in the view/Linux Kernel menu drop-down is a little ahead in listing that 5.8.0-23-genaric kernel.

      I’d sure like to Know if that Kernel 5.8.0-23 is problem free in Mint because I’ve got a new laptop that needs Linux Kernel 5.6/Later that has a fan driver/fan profile fix that ships with Linux Kernel 5.6/Later so that laptop without Kernel 5.6/later will overheat and be thermally clock throttled without that fix. And I so very much want to get that laptop off of Windows 10 and onto Mint 20/20.1(When that Arrives Shortly).

  11. Tom Hawack said on October 20, 2020 at 3:06 pm

    Firefox 82 : no group policy removed, one added : ManagedBookmarks : “Configures a list of bookmarks managed by an administrator that cannot be changed by the user.”

    Concerning PDF – I was already disturbed by the fact that since recent versions of the browser Mozilla associates .pdf to Firefox with no option to prevent it, obliging the user to re-associate the format with his dedicated reader when applicable. A browser is not a PDF reader no more than it is a video or audio reader. Does Firefox associate itself with audio/video files? No, then why with PDF? The fact the browser may read, internally, once opened, audio, video and PDF is nice, but associating these with the browser is illegitimate IMO.

    From there on I’d reset PDF association with my default PDF reader which happens to be SumatraPDF but also set PDF files accessed from the browser to be read with SumatraPDF as well, via ‘about:preferences / Applications / Portable Document Format (PDF)’ – Action = Use SumatraPDF.

    Surprisingly this doesn’t do it anymore with Firefox 82.0 unless I set pdfjs.disabled to true… otherwise — even though Firefox Application shows PDF action to be opened with SumatraPDF as above mentioned — pdf will open with Firefox preview.

    All these words to emphasize on Mozilla’s apparent determination to force by all means PDF to be opened AND read by Firefox. Why such an intensive zeal? I have no idea. If you do thanks for sharing your opinion.

    1. Juraj M. said on October 20, 2020 at 4:13 pm

      Although this may be an inconvenience for power users like you, it may be very handy for many ordinary users.
      I see a huge benefit in not having to install any PDF reader application just to be able to read and print a PDF. Many of these apps are full of security holes and most users will never update them. On the other hand your Firefox auto-updates every 4 weeks, fixing those holes.

      Fun fact – did you know that advanced malware when executed without elevated permissions can scan what app versions you have installed and then download a “patch” for the specific security hole it finds in the database and then gains full access.

      1. SpywareFan said on October 20, 2020 at 6:25 pm

        Good luck if the malware is executed before Moz releases the patch! Sumatra can work offline, you can also block it’s connections with the firewall and use HIPS to prevent it from opening the browsers, so no chance to download/upload anything.

        Changing default program association without user consent is malware like behaviour.
        Thanks Tom for pointing it out, PDF is just another reason to not update 68ESR.

      2. Tom Hawack said on October 20, 2020 at 9:23 pm

        @SpywareFan; thanks for pointing out the insecurity potential of PDFs and moreover when opened outside of the browser (the latter is in favor of “Firefox-PDF”. I should have had that in mind, especially that we’re all aware, me included, of the harm a nasty PDF can achieve.

        I’ve added SumatraPDF to the firewall (in & out) which of course blocks the application’s ‘Check for update’ feature, information available elsewhere and on SumatraPDF’s homepage anyway.
        For preventing a pdf opened with SumatraPDF from opening the browser, it’s done globally with an application reviewed here on Ghacks called ‘BrokenURL’.

      3. Tom Hawack said on October 20, 2020 at 6:17 pm

        @Juraj M., don’t get me wrong : what bothers me is not the availability of a built-in PDF reader which is just as fine, enjoyable and pertinent as it is for audio and video. The problem is Firefox being set as the default PDF reader on install. Who’d appreciate having their default audio, video player replaced by a browser’s, without the user being asked? Same for PDF : the install process should ask the user if PDF should be associated to Firefox. I don’s see this requirement as a power-user’s caprice. That’s for the association PDF-Firefox.

        As I wrote above, Firefox moreover makes it hard to use one’s default PDF reader once in the browser, but I’m still wondering if this is a bug or deliberate.

        So, again, nothing against services, added features, long live pluralism and diversity, I’m only bothered as I explained it by the enforcement.

  12. Paul(us) said on October 20, 2020 at 9:22 am

    Nice to read that Gecko software is still developed further on and I am also excited that sandboxed iframes, are now blocked. I am myself now looking into the Firefox supports thats allow-downloads flag for iframe sandbox. And the performance improvements for this version 82 is almost stagering.
    The only thing that’s bodering me is the credit card auto-fill data supports screen readers in this new 82 version.

    1. Iron Heart said on October 20, 2020 at 3:25 pm

      And people say that I am shilling Brave…

      1. Herman Cost said on October 20, 2020 at 5:03 pm

        You are in fact constantly shilling for Brave, for whatever reasons. Why pretend otherwise?

      2. Iron Heart said on October 20, 2020 at 6:05 pm

        @BSDetector, Mike Wazowski, Herman Cost

        It’s not forbidden to mention other browsers under articles about Firefox here, or is it? Firefox is also being mentioned under articles it would technically have no business to appear under (if that were a hard rule), so where is the difference? Oh right, there is none.

        I don’t shill for Brave because I do not describe it in unrealistic terms, I merely said that it is the best browser for my own use case (which is true). But if I ever happen to make statements like this…

        “(…) I am also excited that sandboxed iframes, are now blocked. (…) And the performance improvements for this version 82 is almost stagering.”

        …you can rightfully call me a shill from that day on, as opposed to you calling me that out of spite now. Thanks for proving that the Firefox commenters here are more equal than others, and get away with stuff I would be viciously attacked for, by the way.

      3. Larry said on October 20, 2020 at 7:19 pm

        @Iron Heart We get it, you hate Firefox and love Brave… bla bla. Who cares. This article is about Firefox which keeps getting better and better. Don’t bother to reply i don’t care for your “reasons” to dislike Firefox. You’re known as the “town’s idiot”. Nobody listens to you anymore. Preach to the clouds.

      4. Sebas said on October 21, 2020 at 10:23 pm

        Lots of people listen to him. He is the expert here about Brave. Firefox is getting worse and worse.

      5. Lawrence said on October 20, 2020 at 8:59 pm

        I care. It’s nice to read comments about other browsers and opinions. You need to behave yourself, young boy.

      6. Iron Heart said on October 20, 2020 at 7:35 pm


        No, I am only calling out hypocrisy, apparently successfully.

        Beware of the fool, too, for he often speaks the truth.

        PS: I hope you have installed the RegretsReporter extension in Firefox, to support Mozilla‘s efforts of cleaning YouTube of all wrongthink. If not, install it now. Live it. Embrace it. Don‘t be so half-hearted in your support of Mozilla‘s efforts to keep the Internet free and accessible for everyone!

      7. Klaas Vaak said on October 20, 2020 at 7:10 pm

        @Iron Heart: it is clear that your 3 detractors need to look up the meaning of shill. To save them time, here is a definition:

        a mountebank’s accomplice who acts as a genuine, enthusiastic customer to entice others.

        They may not like Brave, but it is a real product, nothing to do with a swindler. As for the accomplice, in their eyes you, it is clear from your past comments you’re not acting as a customer (= user) but are a genuine one.

        Oh well, they’ll get their vocabulary right one day. I am expecting some blowback over this comment, along the lines of an IH lackey, or whatever takes their fancy. That’s fine with me.

      8. Mike Wazowski said on October 20, 2020 at 4:25 pm

        Well, you have posted about Brave in many articles about other browsers.

      9. BSDetector said on October 20, 2020 at 4:08 pm

        Firefox article. Firefox comments related to changes listed in the article
        Iron Heart: mentions Brave ironically insisting not a shill

Leave a Reply

Check the box to consent to your data being stored in line with the guidelines set out in our privacy policy

We love comments and welcome thoughtful and civilized discussion. Rudeness and personal attacks will not be tolerated. Please stay on-topic.
Please note that your comment may not appear immediately after you post it.