Firefox Support Forum

I would suggest within the last month or so Firefox has started to hang in a way that everything continues to "work" but I cannot switch tabs and I cannot do anything else with Firefox until I kill it.

I can periodically reproduce this by: Randomly select and copy text on a website.

Behavior observed: You can no longer switch tabs, enter a new location, close tabs, or really interact with the browser at all even though it is not dead. Keyboard shortcuts do not work either.

Version: 107.0

Title says it all pretty much. I have text cursor indicator turned completely off on windows, so that's why I'm wondering why Firefox does it when I never enabled something like it. I have the ctrl+pgup and ctrl+pgdown button combos binded to my extra mouse buttons, and I use them very frequently, so this starts to become really annoying really quickly. Especially if I've somehow accidentally 'selected' something on youtube or such, and then it displays a big blue blob out of nowhere. I don't know if this is a purposeful feature or what, but I would appreciate it if somebody could tell me how to disable it, it's extremely irritating.

Hi! Yesterday i updated my firefox to last version and i got my UI way too big, so today i looked online for some fix on that. I found a fix saying if you add a line in about:config site with the parameter "ui.textScaleFactor" with a value of 100 it will be fixed. but by mistake i changed it to 10 insted of 100 so when i open firefox i have a super big black screen

most of my problems are i can't reinstall firefox because it made the same weird big ui problem. There is any way to fix it?

thanks in advance

Saved themes in Firefox color not visible in add-ons manager. Does not fix itself in safe mode. One of the saved themes is a default preset I liked, the other is a preset I made myself, using all options except advanced colors.

If I Open normal window (not private) then click menubar/3 bar menu (upper right side) and click 'new private window' and then close normal window, it also closed my private window. v121.00

Hi--

I recently upgraded from Mojave to Sonoma 14.2, and Firefox 120.0.1.

In Mojave, fn-F12 used to invoke a "Dashboard" with applets like Dictionary and Thesaurus.

With Sonoma, fn-F12 causes the bottom part of Firefox's frontmost window to become a web developer tool, same as ⌥⌘I, instead.

Can I get my Dictionary and Thesaurus back?

--Gil

I wasted about an hour trying to make my bookmarks within a folder I named (let's call it "Foolhardy books and CD's") be transferred to Chrome. Every single OTHER folder and bookmark within NOT called "mobile bookmarks" IS transferring!!! Worst is 1) I didn't start these bookmarks on the computer I'm using...and use 'sync' but no one ever told me that would become a dodo bird distinction when it comes to easy bm transfers. I have tried saving it in JSON or plain text on desk top as new folder and again, it just doesn't like the particular Foolhardy file from any otherwise complete 'add to Chrome from Firefox" etc. There's some dudes on a google search on this with a converter, but it doesn't do a darn thing, and no clear way to contact them "if somethings not working". My concern is if I can't get this bookmark folder to convert out of mobile format, its pretty pathetic, meaning it is trying to make me stay within Firefox/Mozilla format....ugggh!

After installing Update 123.0.1, History and Bookmarks no longer show up in the search bar even though they're still checked in my Search settings. What could be causing this? Thanks!

Firefox stopped opening links in web pages like secondlife:///app/region/Kings%20Stone/224/155/22 ,WHere do I tell Firefox what application to use to handle that kind of a link?

I just "refreshed" firefox after it stopped loading all the websites. I then tried to isolate the problem, found out that there is no issues with my firefox and any of its add ons. But as soon as I add Chrome folder and a css to enable multirow bookmarks folder. No website launches. Just white screen. Anyone experienced the same?

Please help as I really need multirow bookmarks. Thank you.

It turns out the copied logins-backupjson file i had pasted on my desktop screen was already overwritten by an added or removed login, thus writing over when it did have the saved login removed that i was trying to recover

is there any other way to recover the removed login?

i saw this response by Cor-el for another user with a similar situation

If you still have the signons.sqlite that was used in a previous Firefox version then you can try to restore passwords saved in that file.

Firefox 32 and later builds store the passwords in the logins.json file in the profile folder and no longer use the signons.sqlite file that has been used before (the matching key3.db file is still needed). If you still have the signons.sqlite file used in previous Firefox versions then you can try to force Firefox to migrate the passwords saved in that file (you will lose passwords saved in Firefox 32+ versions). You can force Firefox to reimport the passwords from the signons.sqlite file and rebuild the logins.json file with these steps:

   reset the signon.importedFromSqlite pref on the about:config page to the default value via the right-click context menu
   delete the logins.json file in the Firefox profile folder with Firefox closed 

When you restart Firefox then you should have the signon.importedFromSqlite pref with the value set to true and you should have the passwords imported in the Password Manager unless there may have been errors.

Firefox isn't loading anything, not even the about:configs page, this happened out of nowhere, i tried reinstalling it, restarting it but nothing is solving the problem, im using the lastest version btw