Firefox Support Forum

I was using Firefox when suddenly it was no longer there. When I clicked on the icon, it reopened, with all my bookmarks and history, but no tabs! I stupidly shut it down again. The forums all said to just go to History > Restore Previous Session, only there was no such option in History. I tried to do a Windows System Restore to several days ago, but it keeps failing and suggesting that I turn off my anti-virus, which I have. Further reading in the Mozilla forums said to take an old upgrade.jsonlz4-20240618110440 (or whatever date) file from the sessionstore-backups folder and move it into the main profile folder and rename it sessionstore.jsonlz4 (I can no longer use the recovery.jsonlz or previous.jsonlz files because I'd stupidly shut down Firefox after it had loaded with no tabs). I have done this and restarted Firefox, but still get no tabs. That file is huge (22MB) and I've examined its contents and can verify that the tabs are there. So why isn't Firefox reading it when I run it and displaying my tabs? I did see that other people on the forums had this problem but I didn't see a solution. One remote possibility may be that my current version is 127.0.2 (64-bit), while the upgrade.jzonlz... file was clearly generated as a snapshot of when the version was 127.0.1. What can I do to restore my tabs, in light of the fact that I don't have a recovery.jsonlz or previous.jsonlz file with the tabs any more and Windows System Restore is unable to restore my system to several days ago?

I'm having issues with videos loading on ANY webiste, YouTube ect.... This started happening very recently out of the blue. Videos work fine on Edge. Additionally, I cannot run Firefox in troubleshooting mode? It crashes. I tried "refreshing" and reinstalling Firefox to no avail. I am using AdAware AV and AVG anti viruses if it matters, I have tired disabling both and loading FIrefox, no changes.

I Have Had It Installed On Microsoft Edge For About A Year With No Problems. I Had It Installed For About 3 Months On Firefox Then I Needed To Install It Again & I Get The Above Messages. Why Is It Doing This? There Hasn't Been Any Harm Done To My Computer. Also Firefox Needs A Customer Service Phone Number For People To Call & Explain Their Issues It's A Lot Quicker & Easier To Solve Your Problem.

I've added https://x.com as an exception site but it is still blocked.

This is outright censorship which is something fascists do.

Tell me how to fix your browser so I may access x.com again or I stop using Firefox forever.

Problem: Persistent 150 KB of Cached Web Content For several years, I have gone to “Settings” / “Privacy & Security” / “Cookies and Site Data,” clicked the Clear Data…” button, checked both “Cookies and Site Data,” and “Cached Web Content,” and clicked “Clear”, and consistently gotten BOTH “Cookies and Site Data,” and “Cached Web Content” down to “0” zero. Recently, I have been unable to “Cached Web Content” to go below “150 KB of disk space.”

         I have NOTHING listed in “Manage Cookies and Site Data” or “Exceptions -- Cookies and Site Data.”
         I have tried reinstalling, but the problem has persisted.
         On the assumption that this is malware problem, I have continued to use Mozzella VPN, but stopped using the program for browsing, etc.  Should I stop using it altogether until the problem is fixed?
         Can you tell me how to get rid of the last “150 KB” of “Cached Web Content”?

Is about:config > app.update.auto set to false sufficient, How to Disable Firefox Update Notifications: A Step-by-Step

Or how about the registry? Turn Off Update

I use Firefox to access my bank account, and it autofills the personal id number, and, when I click, the 6 digit code, which I allow it to store, because no one else has access to this PC. BUT, I had to take it in for repair, and give them my Windows login details. When I got the computer back, I went to the bank login page, and the autofill was a different personal id number. Does this mean that somebody used Firefox on my machine to login to their account? Or could a reboot have meant that Firefox randomly changed the PID number? Thank-you for your help.

I've not been able to download anything on Firefox for about 3-4 weeks now. Every time I try to it immediately fails with no explanation given. The only type of download that works is "Save Image As..." Even trying to download a picture with a download button instead of right clicking nets an immediate fail. I feel like I've done everything to try and troubleshoot it myself, but nothing seems to be working.

I've restarted my computer, ran Firefox in troubleshoot mode, refreshed and reinstalled it, checked for viruses and malware, tried both nightly and ESR versions, tried running them as admin, logged out of my Firefox profile, cleared my cookies and cache, changed and reset the download folder, ran a repair for Visual C++, and reset my windows security settings. I'm honestly surprised nothing has worked.

The only thing that I know I haven't tried yet it refreshing my entire computer, but that's my very far last resort because I'm able to download files just fine on Microsoft Edge. Only the Firefox applications have given me any problems, so if I were to refresh my computer and have the problem still not be solved somehow I'd be deleting everything to get nowhere.

If anyone has any other ideas to try that be very much appreciated.

All of a sudden, I can't download any attachments, no matter what file type it is. I've reset Firefox to it's default, restarted, everything suggested. I don't have the first clue as to what this is.

For a week or better I have been unable to download anything through my Firefox browser, I have refreshed and uninstalled Firefox (I had to reinstall through another browser) in an attempt to fix this issue to no avail. I cannot download from verified sites, nor am I able to download Firefox's own extensions or themes (when I attempt I get an error telling me to check my connection, screenshot included).

I would like to be able to use Firefox normally again, with the ability to download files and install my extensions restored.

i have made a major mistake trying to manage my bookmarks i need to delete all bookmarks and restore previous settings but every time i try to delete files or restore previous book marks firefox freezes. i have manged to copy bookmarks menu into other bookmarks and then copy other book marks back into bookmarks menu multiple times. have probably set a record for most book marks as i had over 1.3 million. i have managed to delete a lot of folder but i cant do anything with the ones i left without freezing

1. In the past there was a restriction on the suggested number for "network.http.max-persistent-connections-per-server". Is that still the case?

2. Does prefs.js contain all the altered about:config settings? Can I safely transfer "prefs.js" to other profiles in attempt to enable all those settings changes, instead of changing them manually, one by one.

My laptop glitched while doing a Windows update and it chose to not load certain apps upon completing the update. Mozilla Firefox was one of the apps it chose to delete and I lost all my bookmarks with my login information to all my accounts, can I retrieve those?

I have recently noticed that I can no longer see the "comments" sections on various "News" websites. I first noted this with Townhall Media sites (Townhall.com, Redstate.com, Pjmedia.com) and now Foxnews.com. What has Firefox changed that has resulted in this issue? Most of these sites use Disqus for comments. I have tried explicitly allowing content from these sites. I've been using Mozzila products since the advent of Netscape. Always found Firefox to be superior to other browsers, and I'd like a little help in finding out what is causing this problem. Thanks.

Can not find how to do FireFox on the new setup. HATE the new Fire Fox emailing format!!! One thing is the ongoing back and forth with others I sent an email. Usually to reply, just had to click on reply and send my response fro the just sent email. I HATE THE NEW SET UP!!!!

I'm unsure about this setting. I don't want a tab to reload when it's switched to.

It seems to indicate that something will be reloaded regardless of what I choose. I assume that's probably not the case.

Please confirm.

Good morning, Our company's firefox add-on(Saba Security Plugin) has stopped working, please let me know what happened.

When a new client (version 126) downloads the add-on, the following message is displayed: "The add-on downloaded from this site cannot be installed because it appears corrupt."

If you install an older version, it works without any problems, what is the reason?

I have already contacted you once at: product-help@firefox.com

And they told me to report at: https://support.mozilla.org/questions/new/desktop/form

Regards,