Firefox 95.0.1 fixes connection issues and other bugs

Martin Brinkmann
Dec 16, 2021

Mozilla plans to release a minor upgrade for the stable version of its web browser today. Firefox 95.0.1 is a bug fix release that will address several issues in the browser, including a connection issue to several Microsoft domains.

The connection issue was posted to Bugzilla, Mozilla's bug tracking site five days ago. The reporter received an error message, MOZILLA_PKIX_ERROR_OCSP_RESPONSE_FOR_CERT_MISSING, while trying to open a page on the Docs subdomain of the main Microsoft website.

The page, listing supported AMD processors by Windows 11, returned an error message and not the actual content. Firefox displays a Secure Connection Failed error page with the aforementioned error message.

Several users reported issues on other subdomains, including, and

The issue appears to come and go sporadically, but the planned update of Firefox will resolve it for all stable users of the web browser.

Firefox 95.0.1 fixes three additional bugs. The first affects the Linux version of Firefox only. It addresses a crash in WebRender on "some Linux/X11" systems according to Mozilla. The Bugzilla report suggests that crashes "have increased a bit over the last month" and that the crash takes down the entire browser and not just a single process.

The next issue fixes a crash on Windows devices, specifically crashes when shutting down. The volume of crashes was exceptionally high according to Mozilla and made up about a quarter of the top 50 crash signatures reported to Mozilla during the time.

The volume jumped from 500-1000/day to multiple thousands per day around Oct 26th or so. We heard there was a Windows update around that time. However there are crashes on win7/8/10 and 11. Just the one most common signature for this issue has had 16000 crashes in the last 7 days, and about 1/4 of the top 50 crash signatures are from this issue, including #2.

The final issue is again limited to Firefox running on Linux devices. It fixes a website contrast issue that some users experienced when Dark Mode was enabled on the operating system level.

Firefox 95.0.1 will be released later today for all desktop operating systems that Mozilla supports. Users may open Menu > Help > About Firefox to run a manual check for updates once the update is released officially to update Firefox as soon as possible.

Firefox 95.0.1 fixes connection issues and other bugs
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Firefox 95.0.1 fixes connection issues and other bugs
Mozilla plans to release a minor upgrade for the stable version of its web browser today. Firefox 95.0.1 is a bug fix release that will address several issues in the browser.
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  1. Ayy said on December 17, 2021 at 2:01 am

    Too funny, the original bug for the OCSP stapling issue is #966856 from EIGHT years ago, It sure is nice to know that the alphabet people like David(Dana? lol) Keeler who were assigned to work on the bug ignored it until it blew up in his face, really highlights the total lack of priority at mozilla these days but I guess this is what happens when you lose your grip on reality.

    1. ShintoPlasm said on December 17, 2021 at 11:20 am


  2. Fan said on December 17, 2021 at 12:48 am

    I like this browser very much. Especially the company when they said they supported Censorshipo and deplatforming and they spammed android users to join the boycottfacebook campaign.
    We need less people on the internet, not more, we need more people to think like robots and only do what they say.

    Firefox decline in marketshare is a myth too, everyone loves Firefox more than Chrome.

    Firefox the best browser for privacy… not out of the box because you have to harden it to make it good but I trust Mozilla very much.

    Thanks google for half billion dollars, we will get manifestv3 like you force Firefox but that’s a good thing since Firefox said that they won’t remove immediately the webrequest API, so we are fine. :D

    GG everyone else, FF is the only way.

  3. Tom Hawack said on December 16, 2021 at 5:57 pm

    Ninety-Five-O-One on track. Had’nt encountered FF95.0’s issues described in the article (OS is not Linux and I don’t visit MS sites that often). Firefox on on a highway to heavens; speed, privacy and ease of use. I’ve been dating Firefox ever since we were teens, the browser was hardely version 2. Never messed up with another since. Call it love? LOL.

    1. Richard Allen said on December 16, 2021 at 8:47 pm

      Very impressive Mr. Hawack especially since long lasting relationships seem to be fairly rare nowadays!

      I myself have been…somewhat…mostly…loyal to FF since our first date the day v3 was released. I have foolishly flirted with other browsers and there is even a vicious rumor that I might have traded spit with Waterfox for a minute but at the end of the day I always make it back to my foxy lady! :D

      1. Anonymous said on December 17, 2021 at 12:58 am

        Best comment ever!

  4. John G. said on December 16, 2021 at 5:01 pm

    Firefox is a great browser, however it needs to solve as much old bugs as possible soon. :]

  5. Aegir said on December 16, 2021 at 4:48 pm

    Firefox still has not fixed the Javascript-issue.

  6. Richard Allen said on December 16, 2021 at 4:39 pm

    Thanks for the info Martin! I was wondering yesterday what the malfunction was when I tried to go to Microsoft to look at the hardware options for the Surface Laptop Studio that a friend of mine just got for his wife. Now I’m feeling like a cheapskate for only spending $1050 for my laptop a year and a half ago!!! LoL

  7. semce said on December 16, 2021 at 2:42 pm

    I like Firefox and I will continue to use it until I find another browser that I trust more. Compared to the amount of fixes Microsoft has had to issue recently FF pales. But I also will continue using Windows until I find an OS that I like better. Don’t even suggest Linux; it’s just too confusing and limited for most of us.

    1. ULBoom said on December 20, 2021 at 1:26 am

      The confusion passes fairly quicky, the limitations remain. Most distros work fine but for those looking for a similar universe to Windows, it’s not there.

      That’s not to say the core activities typical users do can’t be done with Linux. Browsing is almost identical, other things take some digging. You can’t rely on Linux having an equivalent for all windows programs.

      But Linux is free. I’m harder on stuff I have to pay for, the Linux folks do good work, most volunteer, so they get a pass.

    2. sunnytimes said on December 17, 2021 at 6:03 pm

      its not tho .. put linux mint on a usb and run it .. its no more confusing than windows .. limited in what way ? .. i get it Nvidia drivers blow.. i have put mint on alot of computers and people with zero computer skills love it .. change your mindset, its almost 2022 ..

      1. semce said on December 18, 2021 at 5:03 pm

        Sorry, not happening. There are so many more applications available for Windows and it’s just much easier to use for us “non-techies”. Tried Linux once and also had a chance to try Apple and to me Windows is just easier and with Powershell which I find very good at automating things I will stay with Windows for now at least. But that’s just what works for me. To each his own.

  8. Avoid said on December 16, 2021 at 12:31 pm

    Yeah, great browser. Fantastic job. Good developers. I would gladly PAY to use Firefox, it’s THAT good.
    Sweet lord what a bag of turds this joke of browser has become

    1. ULBoom said on December 16, 2021 at 7:54 pm

      Avoid Avoid.

    2. Richard Allen said on December 16, 2021 at 4:25 pm

      Wow, why are you so angry?!

      Does your anger have anything to do with the what seems like monthly emergency patches for 0-day vulnerabilities in chromium browsers with the latest bag of turds having to be patched two days ago?!

      Anyway… I always appreciate a little humour first thing in the morning, thank you! ;)

      1. Anonymous said on December 17, 2021 at 2:47 am

        He’s angry his MSFT stock is tanking.

  9. Service Pack said on December 16, 2021 at 12:02 pm

    Does this also affect 91.4 ESR? I don’t like the UI of 91.x ESR so I’m sticking with 78.15 ESR even though it is no longer supported since 91.3 ESR has been available…

    1. ULBoom said on December 16, 2021 at 7:53 pm

      ESR update went fine for me.

      The interface can be modded fairly extensively using CSS, useful to me because even the small version is still too big. Worth learning, start here:
      Simple once you figure it out.

    2. EP said on December 16, 2021 at 7:02 pm

      Firefox ESR 91.4.1 also available, which also includes the fix for the Microsoft site connection problem:

      also with Palemoon 29.4.3, which also includes the fix as well

  10. ShintoPlasm said on December 16, 2021 at 11:55 am

    That Microsoft bug was a real cracker that should’ve been flagged up by QA at the Beta stage.

    1. d said on December 16, 2021 at 1:09 pm

      The Firefox bug is 8 years old, but MS recently have turned on OSCP Stapling with SHA-256.

      1. ShintoPlasm said on December 16, 2021 at 6:55 pm

        Even worse, then…

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