Firefox Support Forum

Recently I got a Mac computer and I installed Firefox in it. I can't find "About Firefox" in Application Menu.

How to show it in Application Menu like Windows and Linux?

Hello,

I am using Firefox developer edition I noticed it has updated itself to latest version  : 117.0b1(64-bit)

I always have Firefox updates so version before that was the 116.b08

After the update on startup I get the error message attached I close it and then Firefox runs normally but this happens on every time I run Firefox.

A setting I would like to change in both Firefox Beta and Thunderbird Beta is "grayed out" and has a lock next to it preventing change. What configuration file(s) do I look for to find where they have been locked, so I can unlock them and change the setting? Thank you.

In the new version of the Developer Edition the options "close tabs to the right" and "close other tabs" are in a sub-menu named "Close Multiple Tabs" inside the context menu. Is there's a way to change this so that they will appear directly in the main context menu? I use "close tabs to the right" often and I find this very annoying.

Hello, I would like to know how to remove 'other bookmarks' folder from the right side of bookmark toolbar that showed up suddenly on my browser, it's right after the arrows to show more bookmarks. I can't seem to find a way to delete this.

When Firefox asks if I want to download an update and I agree, soon after that but not right away it stops working - on every new page it says "We need to restart to finish updating" <- This last bit is VERY annoying. Is there a way to keep FF working in such situation? I usually have 3 FF profiles running, about 10-20 tabs each and when it suddenly does this - I can restart them all but when it is suitable for me.

The only solution I can see so far is disabling updates via group policies (which is not well documented, where do i put this policies.json on Fedora? need to google that).

Any other ways to keep updates and FF running until I decide when to restart? Thanks.

Before FF starts it hangs and scans my font folder (all 600meg!) before it will do anything else, like connect to a website. This happens even if I simply restart the application after it's been running. And, its particularly worse after an update. Why can't it keep a list of available fonts that it can refer to rather than scan all over again? This can cause delays that run up to a minute and a half, as long as three and a little more.

I was going to rename the windows/Fonts folder to see what happens but being a system folder I can't.

Windows 10.

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.

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 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.

Whenever I use Firefox, I have an issue once a day where the browser freezes momentarily, flickers, blacks out tabs and other portions of the browser/text, and then resumes. I have had this issue since Day 1, and no amount of Windows updates + Firefox updates has resolved this.

This also occurred when I was using stable versions of Firefox ARM64.

Specs: Firefox ARM 92.0b8 64-bit Surface Pro X 2 (2020) OS: Windows 10 Pro v21H1, Build 19043.1165

Attached is a screenshot of what it usually looks like when this occurs. Please advise.

If I copy and paste any two words or more into the search bar on the new tab it goes to google.co.uk as that is set but only searches for the phrase minus the first word. If I paste it into the address bar everything is ok. If I do the same with a one word term the search bar does nothing having "lost" that word and the address bar works fine.

FFox 92 update today. Menu spacing went to double. No shock there. Found the CSS code below for UserChrome.css and set it up.

EX.

menupopup > menuitem, menupopup > menu {
  padding-block: 4px !important;
}
:root {
  --arrowpanel-menuitem-padding: 4px 8px !important;
}

EX:

menupopup > menuitem, menupopup > menu {
  padding-block: 0px !important;
}
:root {
  --arrowpanel-menuitem-padding: 0px 0px !important;
}

But, it doesn't get any smaller than the above 4/8px set up. Bug? Perhaps there's another CSS setting to be tweaked for V 92? I do not have any other CSS for these items elsewhere in my UserChrome file.

Hello, Since my last update, Firefox 93, my bookmarks present a huge line spacing between them, line spacing that I would like to control to see more bookmarks at a time. Do you know how to proceed ? Thank you very much.

I remember seeing somewhere that -moz-box-ordinal-group does not keep assigned values in userChrome if the value is changed after being set the first time. This certainly seems to be the case -

With the following I had temporarily set the value to '1' but then set it back to '2' - it no longer works.

#clearDownloadsButton {
 -moz-box-ordinal-group: 2 !important;
}

Am I missing something?

Hello, I have a strange problem, so after loading the system, the processor in my computer is drastically loaded, after entering the task manager, it turns out that one firefox process uses a lot of processor (photo in the attachment) after closing this process everything returns to normal and CPU consumption even while browsing the internet does not exceed 7% but it is quite persistent because I have to close this process every time, I will just add that this problem does not occur in other browsers. and none of my friends have it either. I'm using Windows 10 with the latest updates and the latest Firefox developer edition. The problem has been around for about a year and is really bothersome. My processor up to i7 2760qm, I have 16gb of ram. I will also add that in my second laptop with core 2 duo, this also happens only with me, no one who has this problem. Thank you in advance for your help.

Hi,

during maintenance of my logins in my password manager I discovered that I still have the login data for a FireFox Sync account. I can login to that account and see my settings, but I actually want to delete the account completely. The problem: The mail address associated with that account does not exist anymore (changed the company). When trying to delete the account (or when trying to add a seconday mail address), Firefox Sync prompts me to enter a verification code that was sent by mail.

I'll never receive that code, as that original mail adress does not exist anymore.

How can I delete that FS Sync account?

Thanks, Frank