Firefox Support Forum

Hi, I've been having issues with Firefox for some time now. Every page I got to throws a NS_ERROR_NET_INADEQUATE_SECURITY error. I cannot fix it by setting network.http.spdy.enabled.http2 to false is because Firefox then starts crashing. In the past I've gone around the error by turning http2 off, but recently, first the developer edition, then after today's update to 91.0-0.1 of stable version Firefox crashes if I turn the feature off.

The developer Edition started throwing NS_ERROR_NET_INADEQUATE_SECURITY sometime in spring, then started crashing in June I think. The stable version followed soon as described above.

I am submitting this ticket from a beta version, which for some reason does not have this issue.

I thought it may be the Linux version of Eset, but removing it did not help. I cannot think of any other reason why am I getting those errors, but it seems I am alone because my colleagues don't seem to have this issue neither on macOS, nor Windows.

HTML5, YouTube, and Netflix video playback does nothing

Playing HTML5, Youtube, or Netflix video does not work at all for me - Netflix throws an error code, while Youtube and HTML5 simply never stop loading.

I've tried

• Starting Firefox in Troubleshoot Mode
• Clearing the cache and cookies for the given website
• Refreshing Firefox

On the chromium-based edge browser, video playback works normally.

DRM-controlled content playback is enabled, hardware acceleration is disabled, allowing auto-play doesn't help, and neither does disabling Tracking Protection.

Win10 with what was Firefox 89. I had already disabled the Proton UI on this installation, because it is horrible. Today Firefox decided to update to version 91. All of the Proton UI junk is back. I tried disabling it again, but nothing worked. Doing a web search, it appears that Mozilla has disabled the ability to turn off Proton.

I then set about to rollback the installation back to version 89. I found a Mozilla link on this, went to their ftp server and downloaded the installation files for the last version of 89. The installation went normally, but when I opened Firefox afterwards, a little box popped up saying something to the effect of "To keep your History and Bookmarks from possibly being corrupted, Firefox must create new user profile." I exited out of this and Firefox didn't start. I attempted to restart Firefox again and the same box popped up again. The only way to get past it was to click the accept button.

I did so and Firefox started. This was clearly not version 89. As the UI is junk, it took several minutes to find out that this was now the latest version of 92!!!! I'm absolutely positive that I downloaded the correct file. When I look through the update history, it doesn't even show todays version 89 installation as happening. What a piece of junk.

I then spent 20 minutes figuring out how to revert back to my user profile, not the new one that it had created for me. I then did some research on what had happened. Well it turns out that you can't actually rollback Firefox, despite what Mozilla says. For a while they have added "downgrade protection" which automatically creates the new user profile and stops your old profile from being accessed by it. So unless you want to figure out how to spend a hundred hours reconstructing bookmarks, passwords, settings, etc. it actually isn't possible to rollback Firefox. Doesn't this violate some Microsoft rules about being able to uninstall versions of software from within Windows? If you try to do this with Firefox and go back to a previous version it blows everything up.

Does anyone know how to actually rollback Firefox to a previous version, so that Proton can be disabled?

I have like 100 Firefox profiles that i use for different topics and would love to sync them all at once, i was looking for a file that stored the login approved for my Firefox account info to just copy paste that one file in all of my Firefox profiles, but can't really find it.

This is a problem because every single time i have to introduce my email and my password and sometimes it also asks for an email verification code :( .

I normally use Firefox Beta. Ever since upgrading to v92 the option to Send Tab to Device has been missing when I right-click on a tab. I've downloaded other versions of Firefox and the issue seems to follow me out of Beta and into the regular release. I've seen other people having issues with syncing and sending tabs between devices as of late, but no one seemed to be completely missing the option to do so.

For the first time in over a DECADE I went to Log Onto Tracfone.com to check on the cost of buying a One Year Service Card, which is what I have done at this time of the year for OVER A DECADE!

The following Tracfone Problems are occurring on Firefox BUT Working Just Fine on EDGE (1) My attempt to Log On with what I KNOW is the Correct User ID and Password keeps reporting "Invalid User ID or Password" (2) Attempting to tell Tracfone to send a Password Reset Link FAILS. NOTHING Happened, just a short flash where it is trying to process the request. (3) Attempting to have Tracfone Verify what my Username is FAILS. Again, NOTHING Happened, just a short flash where it is trying to process the request.

As I have stated, I had NO PROBLEM Logging On using EDGE! And had No Problem on EDGE requesting Tracfone to Change my Password and it is this Password Firefox keeps screwing up on the Tracfone Logon Screen because it keeps reporting "Invalid User ID or Password")

PS-This type or problem is ONLY HAPPENING WITH THE TRACFONE WEBSITE!

Hi! I'm going nuts. I have Firefox set to NOT remember sessions when I close and re-open. But every time I re-open the (latest) Firefox on my (up to date) Mac, 3 tabs reappear. It doesn't matter how often I delete history or cookies or empty caches. They are not even 3 tabs from the most recent session! They are from a week ago. And no, they are not pinned tabs!

And yes, I have reinstalled Firefox.

Any idea what I should do?

Many thanks!

David

I'm running Firefox DE on a M1 Mac, and I have the 64-bit edition. However, I'm unsure of whether or not this version of Firefox is fit to run on this architecture or not. Anyone know a way around this to get the most recent M1 application but the Developer Edition?

Hi, Since the last update, when I click on a link, the new tab can't be launched. It opens and closed immediatly. I have to click a second time to open it. It is the same problem when I open a new tab manually, I type web address, and when I click on "Enter", the tab closes... I have to do it again and it works. It is not the first time. Next year, after an update, I had the same problem. No change on my systems (Windows 10) and on my MacBook too... Is there anyone who have the same problem ? How to resolve it ? Thank you

I am running Firefox Developer Edition 92.0b9 on macOS Monterey 12.0 Beta 6 (21A5506j).

I noticed lately that I couldn't open some sites, either when I tried to follow a link or typed the URL in the address bar. After a few trials and errors, I think I have identified a pattern but no idea of what the root cause is:

• the sites I am trying to access all redirect to a different URL;
• I can open the sites just fine if I explicitly type `https://` in the address bar.

A few of the sites I am struggling with:

• maps.google.com (--> https://www.google.com/maps), but https://maps.google.com will work;
• epson.sn (--> https://support.epson.net/setupnavi/), but https://epson.sn will work.

I noticed that I could open the above URLs just fine in a Private window, so tried the following to no avail:

• Clear cache;
• Restart Firefox in Troubleshooting Mode (still on as I am writing this);
• Install Firefox Beta side-by-side;
• Completely uninstall Firefox and remove the existing profile, before doing a fresh install.

None of the above solutions work and I am a bit stumped. Safari, Chrome and Brave all work fine.

When some websites use DRM Software's I must Disable my extensions to play the video. How can I disable the add-ons to the specific website? And if it cannot be done how can I disable all my extensions at once. Without un-ticking one by one?

Because every time I visit the website with DRM I must Go one by one to disable my add-ons.

It seems Microsoft and google has changed outlook and gmail HTML for the message text body DIV to specify spellcheck="false".

   div dir="ltr" class="[]" role="textbox" aria-multiline="true" aria-label="Message body" spellcheck="false" contenteditable="true"

Any idea how yo solved this ?

I have Wind 7, after logging in I get my home page (Century Link) when I clk on e-mail it reverts back to my home page. What is wrong or am I doing something wrong?? This is new, never happened B-4, Tks Bill

Dark Mode used to work beautifully in Firefox. Today it stopped working. I can choose Dark Mode in the settings page, and the settings page itself then uses Dark Mode. But Dark Mode does not work in any of the other pages, only the settings page. I think it must be a flaw in an update that was installed automatically today. (September 7, 2021)

Is there a way to uninstall this update and go back to the previous version. Dark Mode used to work beautifully and Firefox was my favorite browser. Can someone help? Thanks.

My menu items are now (9/7/2021) White and double-spaced. Why does FireFox change things that don't need changing with no path back. First, they changed menu color to default to another (I think same as Toolbar color) with no recourse. Now the menus are white and double spaced (today! out of the blue sky!!). FireFox, at LEAST make these features configurable. Why do you do this?

Tons of sites not loading properly on F92. No problems loading them with unsafe Chrome. So here is my question: Are you gonna fix this or should I just give up ?

Firefox just updated a few minutes ago, and since the update my background in every website I visit is white. Previously my backgrounds were all black due to my Windows 10 "High Contrast Theme" being activated. Well since the update it seems Firefox "ignores" the Windows Theme settings and overrides them with its own. As far as I can tell, there is no way to make websites display with a black background like they did before the update. I hope this gets fixed.