"Tree Style Tab" displays on the top of the sidebar

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 Tre… (read more)

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.

Asked by RDL 9 hours ago

Last reply by RDL 15 seconds ago

Firefox deleted all my bookmarks

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… (read more)

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

Asked by Nate 5 minutes ago

Firefox covers the hidden taskbar on windows desktop

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 … (read more)

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

Asked by ross_sinclair 22 minutes ago

Anything relating to Firefox refuses to open for more than a split second.

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… (read more)

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.

Asked by Bri 23 hours ago

Last reply by Bri 58 minutes ago

Event viewer - Firefox Default Browser Agent - Eventid 5 - Access Denied

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 could… (read more)

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 >.>

Asked by alexisvongermania 1 hour ago

Tabs.

How to make that when I close a tab I get to the last opened tab insted of the neighbouring tab? It's very VERY important to me.

Asked by Nicherix 1 hour ago

Can't connect to dropbox.com

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 extension… (read more)

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.

Asked by abqwriter 2 hours ago

AUto logged out

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’… (read more)

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.

Asked by Mahmoud Tantash 2 hours ago

Mozilla Firefox won't open

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 … (read more)

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

Asked by N S 2 hours ago

Sound bugs away when opening links from my Bookmarks

Hello Firefox Support team, This has been an issue sins ever when I use a direct link to either a YT Channel or a Twitch Channel the Sound 100% never works. The sound pl… (read more)

Hello Firefox Support team,

This has been an issue sins ever when I use a direct link to either a YT Channel or a Twitch Channel the Sound 100% never works. The sound plays for 1 frame and then just goes missing. when I open the Twitch homepage link with a Bookmark the issue does not occur.

p.s this happen with every audio source that I open with a link from my Bookmark. Youtube, Twitter, Twitch, Netflix ... tis super annoying and removes the use of Bookmarks for me. Reloading the site does not fix it, I have to open a new tab for it to work but only when I dont use any Bookmarks. Removing and creating new Bookmarks also does not change anything.

I hope someone can help me.

Asked by BloodRage 2 hours ago

Strange bug where inspect element tab tweaks out

Hello to those of you reading this, Over the last five or so days, my Firefox has been acting in a wholly unpredictable way. Every time I launch Firefox, the inspect ele… (read more)

Hello to those of you reading this,

Over the last five or so days, my Firefox has been acting in a wholly unpredictable way. Every time I launch Firefox, the inspect element tab will open and close itself repeatedly for about 3-10 seconds, stop for a bit, and then start again. CPU usage by Firefox skyrockets whenever the glitch occurs.

I have tried Troubleshoot mode, I have tried a clean install, I have tried to refresh Firefox, all to no avail. This doesn't seem to have anything to do with a Firefox update, as the last update to my Firefox was well over a week prior to the start of this issue.

I am running several extensions: uMatrix uBlock DuckDuckGo Privacy Essentials DecentralEyes PrivacyBadger BetterTTV Facebook Container Firefox Multi-Account Containers TTV Ad-block Wikipedia Context Menu Search Redirect AMP to HTML

However, none of these seem to be the cause of this issue as it persists in Troubleshoot mode and after a Firefox Refresh.

The only reasonable lead I have regarding this issue is that the browser console spams the error messages as can be seen in the image attached to this post. A recurring element is "server0.conn0.watcher2.process16". I'm afraid I know only enough about coding to understand that this is probably the root of the issue, but am completely lost on how to fix it.

Another tidbit of information, whose relevance I doubt but am including nonetheless, is that I recently transferred my C:/ drive from an SSD to an NVMe. I'm wondering if perhaps the application is trying to call on a process stored on the other drive. I find this unlikely, as similarly to the point on the Firefox version this only started occurring a week or two after I transferred the drive over.

Any assistance on this matter would be greatly appreciated!

Asked by jesusthevelociraptor 1 day ago

Last reply by jesusthevelociraptor 3 hours ago

when logging into "my telus" returns (type "PingFedError" status 500 fields [] message "PingFed: [400] Client id does not match the id of the client to whom the authorization code was issued.")

Is this perhaps because of the email i use for Mozilla login is different? Also Firefox is not my default browser on this windows PC, Microsoft Edge is, (although rarely … (read more)

Is this perhaps because of the email i use for Mozilla login is different? Also Firefox is not my default browser on this windows PC, Microsoft Edge is, (although rarely used) when I do sign in with Edge the login proceeds normally. any suggestions? this is obviously not critical but I am seeking clarification.

Asked by abies57 3 hours ago