Firefox Support Forum

Had it yesterday, happened this morning after the restart and just NOW, when I entered 6 lousy tabs, and they are NOT in the recently closed list either.. wups, gone, no tabs, setting has a check mark on open previous windows and tabs. Within 24 hours, lost the tabs three times with a non reported crash and Firefox closing itself with no warning.

I honestly do not think I am responsible to keep a backup of my browser history, I expect a browser to do that. I switched from Opera to Firefox not to long ago.. even Opera is a security risk.. at least it doesn't delete your tabs just for fun.

Very simple.. that happens once more and i am OFF this browser....

I have BitDefender and I keep getting the following notification: BitDefender blocking connection to gitcdn.xyz due to unmatching security certificate by firefox.exe. Can you please correct this?

Thank you

Preferences in user.js are added permanently to prefs.js and persist even after user.js is deleted. What if you want to specify preferences in a file, just like with user.js, but you don't want them to be made permanent? In other words, so that when the file is deleted, the prefs will be forgotten. Is there any way to do this?

Is Firefox relay free? It says so here, Activate Firefox Relay - Mask your email address

I decided to try it out. I was exploring it, seeing if I could create a mask with a chosen name, and now it says I used up all my free masks.

Since that's the case,. can I still choose the one of those I unwittingly created? Maybe there should be some kind of disclaimer?

As of January 2024, I am constantly being asked for a Primary Password when I use the Firefox browser. I do not believe I ever set a Primary Password or Master Password with Firefox, and I have been using Firefox for many years. When I go to the Settings page, it says to confirm my current Primary Password in order to change it. But I need to know my current password to do that. I also unchecked Primary Password, and got a pop-up that said if I remove my Primary Password my information will not be protected if my computer is compromised. Obviously, I don't want that to happen. Is it possible I am being asked for a Primary Password because I am using a VPN? Please advise on how to resolve this problem. I can't change my password, and I can't confirm ever setting one so I am concerned. Thank you.

Hey there! After updating Firefox to 121.0.1 YouTube latest videos box not showing. It appears for a few seconds after page is loaded, but then just disappears. Checked on another computer -- the same issue, although in 120.0.1 works fine.

only sometimes, when i get a new tab, from double click or anywhere else, appears a blue circle on the left side of the tab bar, it comes from the browser it gets bigger. ive just seen it from the corner of my eye. it just happens real quick

can someone help

I am trying to migrate from a very old version of Firefox (v. 55) to the current one, but there is an app that is more helpful to me that all the other features combined. That is the "Tab Grouping" app that will not run in any version of FF higher than v. 55.

In my work, which often includes a tremendous amount of research, I need to be able to quickly go from one group of tabs to another. If I had to open all these sites manually, that would take the better part of the day and frankly I don't have near the mental capacity to remember the tremendous number of tabs. I have had a couple replies (Thanks!) to this question sometime back, but unfortunately none were even close in performance.

So, can anyone direct me to an app that will allow very quick movement from different sets of windows/tab groups (please see screen shots below)? Is there anyway that I can get this app to work in Legacy mode? I have several other old apps that work perfectly well in this mode.

This doesn't happen every time, but certainly more frequently than it should. Is there anything that can be done about this. Is this about competing for resources. Maxing out the CPU?

Just now occurred. Firefox closed shortly after opening Chrome. No crash notification. Then, Chrome froze, with one of those "Close program or wait" messages.

Two computers. Both computers name version of Firefox and same version Of Windows 10. On computer 1 drag and drop no longer works. I can click star next url and manually to bookmark toolbar. I also cannot reorder on tool bar by dragging and dropping by selecting.

How do I know I'm doing it correctly? On computer 2 it works exactly as should. Click on padlock and drop or click on entry and toolbar and reorder. Same extensions etc and do not have a bookmark extension though have tab session manager. Same version both computers. Only difference in browser is number of tabs open. x 10 difference in number of tabs open computer 1 versus 2.

If I put firefox in troubleshoot mode with extensions etc off or create a brand new profile and try same problem.

I searched Microsoft forum and opened the first link (https://answers.microsoft.com/en-us). On Firefox, Go back one page (back arrow) button was not working on this website.

Hello everyone. Well, I've been using Firefox for a few months, maybe a semester now, I don't remember. But the point is that since yesterday I have been facing a serious problem of not being able to download any type of file (MP4, PDF, .JSON, ISO, etc.). I've already used the troubleshooting mode and I've also restarted my laptop, but it didn't help. I've also gone to the advanced settings (see 'about:config > browser.download') and reset/deleted the data for each command but the problem still persists.

What happens is the following: I click to download the file in question, however, nothing happens other than the page loading that commonly occurs when downloading something. Still, the file does not appear in the downloads tab and there is not even the option to choose where to save the file (e.g. Downloads folder, Documents folder). The download simply appears to have failed.

Exactly, it 'appears', because today I discovered that all my downloads were being directed without my permission/action to the 'downloads' folder (And that's not where I want them to go). The problem would be smaller if only this happened, as I would then just get the files downloaded there and then change to the desired folder, thus trying to move forward despite the problem. But the downloaded files themselves are not operational, they have the icon when a file is still downloading, in addition to not having a name, everything being just a cluster of codes.

In the end, there are files, large and small, that have no use and that I don't even have control over where to direct them. Which is still a huge problem because I still technically can't download anything from the browser. Please, I really need your help on how to resolve this problem.

Note: Also, when I close and open the browser, the first download I try appears in the downloads tab, but it fails instantly and cannot be resumed, making it an eternal failure.

For ages I've had my tabs automatically restored when opening Firefox. But as of the last few days it won't. The old links are saved so I can restore them one by one through history but that's not automatic. And if I click on restoration in History it will bring up a whole bunch of old tabs not neccessarily from the last session.

I'm on the same computer as I've been for over a year, so I don't know what what the problem is. I've searched on it and tried to re-check the box for this function. But it won't apply...

On all sites where I need to login with my work account I get a tab crash when the browser redirects to https://login.microsoftonline.com/ac4b0eb0-811e-4ab0-acca-8a87079290dc/oauth2/v2.0/authorize?response_type=id_token&scope=user.read......

This is a recent failure (this week), that occured without any changes on my own account to Firefox developer version 121.0b2(64-bits)

I had to install google chrome to overcome this problem. Chrome has no issues with microsoft authentication.

Please solve as soon as possible, otherwise I will be switching to another browser.

Firefox won't play YouTube videos. I've tried everything. There seem to be plenty of problems on the forum BUT NO SOLUTIONS!

I'm ready to switch browsers - permanently!

Hello

I have been using firefox sync for a long time to migrate between PC to PC

My firefox sync profile is full of old stuff and I would like to clean up my settings by wiping out my firefox sync settings and starting fresh.

However, before doing that I wish to export all my data/settings/password/cookies/bookmarks and everything, so files on my computer.

Files that I can read in notepad and inspect. See which settings I have in there and decide which settings I want to put back in my new installation.

I have found a locked question about this on this forum

https://support.mozilla.org/en-US/questions/1065938

It mentions two plugins for this purpose

FEBE (Firefox Environment Backup Extension)

OPIE

Unfortunately and worryingly, they have been removed from the firefox addon store

https://addons.mozilla.org/en-US/firefox/addon/febe/ https://addons.mozilla.org/en-US/firefox/addon/opie/

I found a wikipedia article about FEBE

https://en.wikipedia.org/wiki/Firefox_Environment_Backup_Extension a very old link to download a probably broken version https://febe.en.softonic.com/

and a reddit thread about FEBE which states that there is no equivalent and that it is not possible to export firefox settings anymore

https://old.reddit.com/r/firefox/comments/t2zmjb/febe_alternatives/

as for OPIE, I am unable to find explanation of what it was, where it went or who used it

I know that my profile is stored in

C:\Users\user\AppData\Local\Mozilla\Firefox\Profiles\4vdt083m.default-release

However the files and structure in that folder are inscrutable

I would like to have control over the settings of my browser, what they are, to save them and modify them on my own terms.

I would like to export about:config completely to a regular plain text file, edit them and import them back in.

Secure Connection Failed

An error occurred during a connection to m.upspotacademy.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

The Add-ons Manager tab is automatically presented as one of the tabs when I start Mozilla. How do I configure Mozilla so that the Add-ons Manager tab is not presented?

I recently traveled to Australia for two weeks. While there, I used my mac laptop (with Firefox as my primary browser) on a mix of both wifi-without-VPN and hotel wifi with a VPN back to my home network activated.

I have been back home for more than a week. Other browsers on the same laptop as well as other devices (like my phone) that I took with me on the trip correctly reflect my location (east coast, USA). However, Firefox stubbornly insists that I am still in Australia. The net effect of this has been to break my access to YouTubeTV, which is not available in Australia.

I have tried: - Logging fully out of my google account on firefox and logging back in (at which point the 2FA prompt on my phone says I'm trying to log back in from Australia) - Deleting all cookies, cache and website data - Fully uninstalling Firefox, including deleting the Firefox folder in ApplicationSupport

None of these have had any effect.

Within YouTubeTV, I can force an update to my location, which will temporarily reflect correctly that I am in the US. But it still won't let me play anything if I'm using Firefox, and within Firefox, will soon revert to location unknown. Other browsers on this laptop, and other devices, work fine.

I am at my wit's end. Please advise.