Firefox Community Forum

Hi, The browser suddenly closed, and I can't open it since then. I searched for what to do but couldn't find anything helpful. I tried reinstalling Firefox, but it still doesn't work. I don't know it is a helpful information, but the other browsers (like Chrome and Opera) also don't open.

I have just spent a long time looking for PDFs I really need and when I closed Firefox it deleted every single PDF in my downloads folder (including ones that weren't downloaded during this session)

The PDFs weren't just opened as a website in Firefox, I've downloaded all of them as permanent files and just opened them in Firefox to confirm they work.

I have set my browser to automatically delete download history so I can't redownload them that way (and I would prefer to keep this setting on), however I have never set Firefox to automatically delete any kind of downloaded file (I don't know if this is even available in settings).

I have also checked my antivirus quarantine just in case, but it is empty so I doubt anything was deleted due to possibility of malware.

Is there any way to prevent Firefox from doing this and is there any way I could restore the files. At this point, I can't even begin to remember everything that I may have lost due to this bug and searching and downloading everything manually again may take me days.

extension vpmux.com has disappeared from extension tab. when tried not reinstalling. shows index loading failed.please help

I cannot for the life of me figure this out. Whenever I load a website that needs location (for example, Google Maps or my province's lottery) and enable location permissions, the websites come back saying they cannot find my location.

I have refreshed Firefox, disabled all Enhanced Tracking Protection, disabled all extensions, and have even ran Firefox in Troubleshoot mode - all to no avail. Is there any way this can be fixed? These websites all work on Chrome and Edge and work on my Firefox for iPhone.

On Windows 10 22H2.

Suddenly NY Times links think I am a bot, or there is a java problem, or I am clicking too fast (huh?), and I am being blocked. This started around the same time as the last update. Help! Thanks.....

Hi everyone,

I looked on multiple forums but can't find an answer.

I am trying to setup 2 way authentication for the Mozilla extensions account. But i can't get past the "Confirm backup authentication code" part.

I get the error:

"There was a problem confirming your backup authentication code"

Here is the codes that i got (can be public because it's expired and i left 2 of them out):

w1bycwwp6w eym2bx8yaj wh5h7c77qv s3snv0ez0x 9aveb72jw1 x8d3rzedah

So i copy just one of them, and i get the error.

• No im not copying all of them, just one
• No i don't have spaces in there
• No there is no capitals or anything in there or caps (im copy pasting).

It's very odd and i can't upload my application.

Please advice. Anyone have some idea?

Thank you in advance!

Firefox 140 I use Tree Style Tabs for my tabs, and have for a long time. I updated to 140 and now, at the top of the sidebar is "Tree Style Tab X". Clicking X closes Tree Style Tab and the sidebar. My question. Is there a way to not have Tree Style Tabs and the top of the sidebar, but return to "BookmarksHome" which was at the top previously? Appreciate any help or ideas.

How do i recover my bookmarks without having to get them all back manually? Super annoying. Btw this new browser sidebar is terrible and unnecessary please tell your boss to get rid of it

Hello

I've a Dell optiplex desktop with win 10/11. Every time firefox opens it covers the hidden task bar...I have to tap the windows key to be able to access it.

Have looked around at several threads and no solution...any ideas?

thx

Ross

Today, I signed on to use my laptop, as usual, nothing different about how I sat down or anything, and I try to open Firefox and it flashes something on the screen, but I don't catch it as it immediately closes as well. It looked like a popup with a button, if that helps. I then try to open it again, realizing that I've got that bug, the one that causes browsers to open for a split-second and then close immediately, so I try to fix it how I fixed Opera GX before I stopped using that. Restarting? Nothing. Looking online for answers? Found some! I try starting it in Troubleshoot Mode, I can see down in my taskbar that Firefox is trying to open in Troubleshoot Mode but isn't. Okay, let's try something else, the Profile Manager. I use the Windows+R key to open the Run window and type in firefox.exe -p which according to a couple of websites, -This one included- should have opened the profile manager in a popup, but all I get is a flash of a window and nothing else. Then, I finally try uninstalling and reinstalling the app, upon reinstallation it asks if I want to keep my settings and whatnot, I say yes, problem persists. I uninstall and reinstall again, only this time declining the ability to keep my settings, the problem persists.

I'm extremely confused as to why nothing is working, and I don't want to have to reinstall Windows itself like I saw a comment on Reddit recommend, so if anybody has a slight idea of a solution, I'd be grateful, thank you in advance.

Edit: Just tried downloading and running Chrome, it worked for a second until it randomly closed, I know this isn't the support site for that browser, but I thought I'd mention that the "Not opening, just falshing for a millisecond" isn't just a Firefox thing for me.

So I was looking at Event Viewer and I have noticed that Firefox Default Browser Agent shows error with EventID: 5, aKa Access Denied.

I tried to google a bit, but couldnt find anything useful, or at least for me.

Then I went to about:config in FF and I have noticed that even if I didnt personally made any edits, when I clicked show only modified preferences, it shows A LOT.

So it makes me to wonder what exactly is this error and why my config have so many modified preferences, even if I didnt modify any >.>

From my desktop, Firefox refuses to connect to Dropbox.com. I get alternating error messages: PR_END_OF_FILE_ERROR SSL_ERROR_RX_RECORD_TOO_LONG

I've disabled extensions, cleared cache and restarted. Nothing has helped.

I also have Firefox on my laptop and have no problems connecting to Dropbox.com

Help. Thanks.

Dear,

i opened my firefox and found my self logged out automaticly

and when am trying to login and enter the activation code sent to my email i recieve this msg

You’ve tried too many times. Please try again ⁨in 5 minutes⁩.

When I try and open Firefox, a window pops up for a millisecond before going off my screen, and firefox doesnt open. This is extremely irritating as i downloaded firefox since I also cant open chrome. Is there a fix to this, I have restarted my computer and have uninstalled and reinstalled firefox.

Thanks, Nathan