Firefox Support Forum

Firefox stalls and stops on youtube videos. Chrome, Chromium, Opera do not. Same computer-Linux Mint-only Firefox fails. Tried reinstall, tried all the answers on the internet, nothing works. I've used Firefox for years and never had this problem. Guess I'll have to move on unless there is a REAL fix for this

When I click on the Firefox icon the app opens in which ever desktop it opened in last, not in the one the user (me that is) is currently in. Annoying but not critical.

This problem appeared after I upgraded to LM 20.3 and the latest FF in Flatpak so I have no idea if the problem is LM or FF or both.

Linux Mint 20.3 Cinnamon Firefox "Mozilla Firefox Flatpak - 1.0 98.0.1 (64 bit)

FF uses all memory. I start computer. Start FF to blank page. No Internet connection. No other programs running. Ran memtest before - all Crucial RAM good. If I leave FF on, doing nothing all RAM will be used. Linuxmint 20.3, FF 100. Does this happen with Windows or Mac?

FF 100 on Linux Mint 20 cannot access any websites. Tor can. TBird email can. I'm on an older Ubuntu with FF 94 writing this. How do I get back to previous FF? URGENT!!!

Firefox on my Win 10 desktop seems to be saving logins just fine, but Firefox on my linux laptop isn't. Instead of saving the logins I've actually used (manually) to log into a website, it offers me instead the next time I attempt to log into the website a list of some user IDs I've never used on that website. Why is that?! Anybody have any idea why, where saving logins is concerned, my Windows Firefox is working fine, but my linux Firefox is not? Thanks for any insight you can provide.

Mozilla Firefox for linux Mint 99.0.1 (64 bit) - mint-001

Using Outlook web, when viewing pdf documents, it displays strange symbols (incorrect font sets are probably used).

I point out that using Chrome the problem does not arise.

I also installed the microsoft fonts thinking it might solve the problem I attach illustrative image.

Best Regards. Salvatore

I started using Linux Mint a few months ago, and since then have had issues with opening Firefox on startup. The attached image shows roughly what Firefox does the first time I try to open it after starting my computer. I usually have to close and re-open it 5-10 times before it will launch properly. At this point, I usually manually recover my previous session. Does anybody know of a potential fix to this problem? I have tried updating Firefox and have also tried uninstalling and reinstalling.

Firefox On Linux Persists with a problem that many webpages that are useful,such as wikipedia,youtube or any others crash the browser because for no reason,it returns an error message saying that i have multiple tabs open when there are only 2 tabs shown at the screen at one time,is this normal? i found this out in 100.0.2 and no,some useful websites like troubleshooting or websites with multiple file links for example can still run like they normally would

I am mainly using firefox (108 at this time) in Linux Mint and I have sync setup with some others systems (even older linux distribs with icewease and windows). I have a lot of trouble with certain sites when my profile '~/.mozilla/firefox' is loaded and my sync account is connected or not. (seems to be related to javascript or similar - some wait circles never stop and nothing is displayed) I assume I have something corrupted in the profile. If move .mozilla/firefox profile and starts from scratch those websites are working good.

But I have a lot of bookmarks and does not want to restart from scratch. I already did that one year ago and it seems it when I restore sync when the problems arise.

Any idea?

I am a retired person trying to use Firefox on a Linux os computer i OWN. To day, Firefox has become unstable. I see in my settles that an "enterprise" now controls my copy of firefox.

How can I eliminate this obstruction?

Most discussion of this problem discusses Windows os and is useless to me.

My os is LinuxMint 19 (Tara)

Please advise!

Hi, I am using Linux Mint 20.3 on my desktop computer, fully updated to Firefox version 97.0 (64-bit). I have been using for quite a while and become somewhat attached to the theme "Sidewalk Snowman - by the candy store" by Poppy.

1. Upon the switch of Linux Mint to use Mozilla default settings in Firefox version 96.0 I noticed that all menubar drop down boxes are now dark/black in colour. Also I notice that basically all control option box related menu/dropdown backgrounds now have a dark/black background including their titlebars making labels difficult to read/see (Excluding custom Browser search page).

2. This is causing the separators in bookmarks and titlebar names quite difficult to now see.

3. Disabling "Sidewalk Snowman" by the following: Tools > Add-ons and Themes > Themes > Sidewalk Snowman (ticking) disable - does in fact revert Firefox 97.0 to default theme and things are easy to see (separators/labels in titlebars and drop down box windows then have a white background.

4. For example the "Top Hat on Snowman" by MaDonna theme appears with no noticable issues. in Firefox 97.0 (64 bit).

5. Is there a solution for this to where I can perhaps more comfortably continue to use the "Sidewalk Snowman by Poppy" as before but with the newer version of Firefox 97.0 (64 bit) on my desktop computer?

-Best Wishes

I have been using Firefox since Navigator finally folded. A couple of years ago I switch OS over to Linux Mint. I was using Firefox 64 at the time of the switch. I am currently using Firefox 97. Ever since that time I have had 2 problems that I can not solve. These "problems" do not happen all the time but they have very often. Several times an hour as a matter of fact. The problems are: 1. When I right click on an item within a couple of inches of the right hand side of the screen, the reaction is unpredictable. Right Click means press the right hand mouse button and then release it. Example: When I right click on an image in the middle of the page to open that image in a new window - the right click menu opens and I can select the operation I want performed. No problem. But if the image desired is on the right hand, on or close to the edge of the page, right clicking causes another operation, totally unrelated to the right click menu to occur. The right click menu never appears. Sometimes I am presented the Save as File option. Sometime I get the Block Element option. And sometimes I get the Inspect Accessibility Properties option. I have no control over which function will appear. If the page size is larger than the screen size and I move the slider at the bottom of the screen to bring the image to the middle of the screen, the problem does not occur. So the problem only exists on that 2 or 3 inches of the right hand edge of the screen. And it happens regardless of what size monitor or what monitor settings I'm using. The work around is to press and hold the right mouse buttom. This allows the right click menu to appear and I can select the option I want. But this happens only on items within a couple of inches closest to the right hand side of the screen. No where else. The Mint "experts" tell me the problem is in Firefox and not in Mint.

2. Clicking Off (I.E. clicking on a unoccupied or unused section of the screen in order to terminate a called function such as the right click menu). Doing this often (but not always) results in the entire Firefox screen minimizing itself to a very small, but still visible box in the middle of the monitor.

Do the developers of the Firefox browser have any idea what is happening and how I can fix or prevent it?

I'm using Firefox 104 on LInux Mint 19. In settings I have downloads set to the Download folder and "always ask" is checked. However, when downloading a file the dialog opens to some random folder that ff creates under /run/user/1000/doc, every time, and every time I have to navigate to where I actually want to put the file otherwise I'd have to go searching deep into the file system to find it. In earlier versions (I still have a copy of ff 71 installed too) The download dialog opens to the download folder and if I save the file elsewhere the next download opens to the folder where saved the last file. This is the behavior that I want in ff 104. How can I set that up?

The message about the "Browser being managed by your organization" that shows up in Firefox settings, is new. I've been using Linux mint with Firefox for over a year on my own personal laptop and this message just showed up in my Firefox settings kind of out of the blue.. Can it be related to version 100? I was just trying to do something online. totally unrelated to the Firefox settings, and now I've spent a considerable amount of time trying to get rid of this policy. I tried to set the AppUpdate policy to true, but it still will not allow me to check for updates in the settings, or if I go under help, about. I do not use the laptop often, so this is the first time I've been unable to check for updates, and I would prefer not to have an enterprise security policy running on my personal laptop. I do not know how it came to be on the laptop but any help removing, or resetting the controls would be greatly appreciated.

i am on 64-bit linux mint20.3 i am unable to login into my google account (i am using 2-step verification on google.) just downloaded the firefox 104 version. a popup window appears on the window saying "accounts.google.com wants to authenticate you using a registered security key. you can connect and authorize one new, or cancel." but there is only Cancel button no Ok button. also i am using 'recovery key' and 'Two step authentication' methods in my firefox account. what to do? thanks.

This is so strange as to be almost unbelieveable. It began as a profile issue. Everything is okay now, but there was much weirdness. I think this is a worthwhile read and I'm eager to hear any ideas regarding what happened.

The bottom line: If Firefox changed the name of a mount point, that was/is a bad idea -- developers take note.

I run Firefox (latest) in a Linux Mint Guest inside a VirtualBox virtual machine with a Windows Host. The Firefox application is installed as usual, but the profile is here: 'FireFox Profile.vhd' -- a virtual USB that, on VM boot, VBox mounts here: '/media/mark/FireFox Profile/'.

The profile is: '/media/mark/FireFox Profile/mwad0hks.default/'.

Events: 1 - In a proven Linux Mint VM, today I booted the VM as usual but Firefox apparently lost my bookmarks & history. Why? I'll probably never know. 2 - I created a new profile hoping that in the process, I'd be given the option to use an existing profile -- no dice, FF created a new, blank profile. 3 - I discovered that I now had these: 3.1 - '/media/mark/FireFox Profile/', and 3.2 - '/media/mark/FireFox Profile1/'. 4 - I closed FF, launched Nemo, and tried to delete 'FireFox Profile1' but was refused. 5 - After much fiddling of the contents of 'FireFox Profile.vhd' mounted in Windows (to make it accessable outside the VM) I backed up 'FireFox Profile.vhd' -- good thing I did that. 6 - I realized that the mount point must have been renamed from '/media/mark/FireFox Profile/' to '/media/mark/FireFox Profile1/'. 7 - Sure enough, I launched the VM and deleted '/media/mark/FireFox Profile/' -- remember that '/media/mark/FireFox Profile1/' could not be deleted. 8 - So I concluded that "something" must have renamed the Linux VM mount point from '/media/mark/FireFox Profile/' to '/media/mark/FireFox Profile1/'.

I conclude that FF must have done the renaming in step 2.

I launched the Linux VM aiming to search how to rename the mount point back to its original name and low and behold, FF now found the correct profile and everything was happiness again. End of story. Or is it?

Clicking on minimize(top right corner) shuts down Firefox, instead of just minimizing. This has been happening for at least 5 months now, even though I have reformatted computer a few times, and reinstalled FF. I up date as it becomes available. Currently, using FF,v98,64b, Linux Mint,20.3.

FFox 101.0.1 (64-bit) running in Linux Mint 20.3

Just installed the latest Mint (clean install) and the latest FFox.

FFox tabs are arranged along the bottom of the window! Tabs only appear below the bookmarks panel on the left. On the right, the browser panel is atop the tabs, so the tabs can't be seen. New tabs can't be seen. There appears to be no setting to control top/bottom tab placement -- of course, I want tabs across the top and visible, please. Help!

Also, above "Preferences" > "General" (about:preferences#general), there's an info box that says "Your browser is being managed by your organization". Help!

Regards, Mark.

Running Firefox on Linux Mint Mate 19.2 for several years. After updating FF to v. 102.0, started to experience random screen freezes- no response to mouse or keyboard input. Closing and restarting FF resets the browser but it eventually refreezes. Also since update, various profile elements such as font size do not display properly on some sites and settings on some sites are not retained on restart, as was the case in previous versions. Tabs added to home page do not launch until selected, where in previous versions of FF those sites loaded automatically when opening FF. Updating to v. 102.0.1 has made no difference.