Firefox 99.0.1 maintenance update released

Martin Brinkmann
Apr 12, 2022

Mozilla released Firefox 99.0.1 to the public release channel on April 12, 2022. The maintenance update addresses four issues in the browser, including one issue affecting the Zoom service and another that affected hardware video decoding for some Windows users.

Firefox 99.0.1 is already available. Most Firefox installations are configured to update automatically, but updates may take a while before they are downloaded and installed automatically. Firefox users may speed up the process in several ways, for instance, by selecting Menu > Help > About Firefox.

The page that opens displays the current version. When it is opened, Firefox will run a check for updates to download and install any update it finds. A restart is required to complete the installation of the new version of Firefox.

Firefox 99.0.1

The first issue addresses a hardware decoding issue on some Windows devices. According to the release notes, hardware video decoding was prevented on some Windows systems with newer Intel drivers. A quick check of the bug report reveals that this was caused by an issue that added drivers to the blocklist incorrectly. It appears that about 13% of all Intel users were affected by this according to the bug report on Mozilla's website. The correct amount would be 0.4% based on blocked drivers.

The second fix addresses a text rendering issue in Bengali. Letters were misplaced according to the bug report.

The third fix addresses a drag & drop bug in the browser's download panel. The report on Bugzilla states that drag & drop did always activate the first item in the listing and not necessarily the item that was selected by the user. Users may drag & drop files from the downloads list to load them in external programs directly.

The fourth and final fix addresses a Zoom Gallery mode access issue. It appears that access was prevented when users went to instead of a subdomain of the zoom domain.

Firefox 99.0.1 is the first point release of Firefox 99. The major release was released on April 5, 2022 to the public.

Now You: did you run into any of these issues?

Firefox 99.0.1 maintenance update released
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Firefox 99.0.1 maintenance update released
Mozilla released Firefox 99.0.1 to the public release channel on April 12, 2022. It addresses four bugs in the browser.
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  1. POWGreenpower said on April 14, 2022 at 12:27 pm

    Most of you have already for sure heard of Mozilla’s latest public relation disaster… How they treated the Bitcoin community regarding blacklisting “Proof of Work (PoW)” – which is in reality energy saving and not more energy consuming.

    The issue with Mozilla is that that so-called FOSS developer sadly has since a long time already an unfortunate and sad history of betraying their own users on a regular base.

    They did so with their old power user demography when version 29 and later 57 came out with taking away the customization features this user base loved so much with the goal to attract the Chrome user base which are not going to use Mozilla Firefox as there is already a perfect Chrome around and that different target user base sees no reason to use a cheap browser copy, now they do so with the Bitcoin community too and treating them the same way in the form of appealing and aligning with uninformed green deal scam supporting political and activist Progressive movements.

    It is time to accept sadly that Mozilla turned into a sell-out company and only cares for political agenda these days, unlike in early years where they cared about being different, being unique and being morally superior. Now they tossed all that over board and crossed the moral horizon.

    Its time to blacklist Firefox the same way they did with POW – Its only fair, and its our moral duty to stop such a morally corrupted browser organization, they do no longer earn the privilege to call themselves FOSS – FOSS is of value and vital, Mozilla is not.

    Everyone who supports Freedom should uninstall Firefox and get something like Ungoogled Chromium, Brave, Vivaldi, Seamonkey or even something like Edge or Pale Moon…. everything is at this point more honest and more better as compared to Mozilla Firefox.

    Just my few cents, hope this comment is going to be allowed.

    1. browser said on April 18, 2022 at 7:55 am

      @POWGreenpower said on April 14, 2022 at 12:27 pm

      Beautiful prose, but some of those suggested browsers are not all a replacement for Firefox, such as Edge or many other Chromium based browser.

      Brave is perhaps the better one of the Chromium based but it is buggy and extensions stop working, very few tweakable possibilities, Bookmarks is flawed and doesn’t find your bookmarks when typing the first few letters in the URL bar so one must type in more than necessary for the bookmarked URL to show up etc, PaleMoon works quite well, reminds of Firefox from the past and feels lean, downside is somewhat limited extensions choices but may not be a deal breaker depending on ones needs.

      The only real replacement for Firefox is some of the other privacy and security oriented Firefox spin-offs.

  2. Anon said on April 13, 2022 at 11:25 am

    Thank you Martin for this news!
    Here I bring another news to guys who care about this browser. Mozilla has made decision to make uBlock Origin and several other adblock add-ons but not all of them unavailable to users in mainland China.

  3. Anonymous said on April 13, 2022 at 3:14 am

    I never ran into any problems since I have older Intel drivers.

  4. Monk said on April 13, 2022 at 2:45 am

    Haakon thankyou so much that update nag screen has been driving me mad.

  5. FruitSalad said on April 12, 2022 at 7:32 pm

    Can’t wait for Firefox 100, this will be the year of Firefox!….. just like every year is the year of Linux.

    1. John G. said on April 12, 2022 at 9:36 pm

      Firefox, Chrome and Edge with version numbering 100/100/100. What a coincidence.

  6. Tom Hawack said on April 12, 2022 at 5:35 pm

    I haven’t ran into any of the issues mentioned in the article, updated nevertheless.

  7. anonymous said on April 12, 2022 at 5:28 pm

    “Most Firefox installations are configured to update automatically…”

    …but not in my Linux world, happily. :-)

    1. Haakon said on April 13, 2022 at 12:50 am

      And Firefox with a
      “DisableAppUpdate”: true
      in policies.json in my happy Windows World.

    2. Iron Heart said on April 13, 2022 at 12:42 am


      Firefox Experiments are enabled by default on Linux too, no? Those are not application updates, but Mozilla can still modify your installation as they see fit via this backdoor.

      1. anonymous said on April 13, 2022 at 2:20 am

        Linux Mint retained control of how updates are handled, even after they stopped repackaging FF. The user can choose to update or blacklist updates temporarily or forever, even for FF, so if he doesn’t want 99.0.1 (or 100, etc.), he can choose to not update. As for Experiments, who knows what FF does or doesn’t do in the background. I do have Firefox Data Collection and Use disabled, including “Allow Firefox to install and run studies,” of course.

      2. owl said on April 13, 2022 at 1:25 am

        > Mozilla can still modify your installation as they see fit via this backdoor.

        The “as they see fit” implies that the end-user has no control, which is too much of a rhetorical question.
        Firefox is an open source project program and everything is publicly available.
        The installation of the update application can be controlled by the end user.
        But the average end user is just “unaware or indifferent to the existence of such Wiki”.

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