Diễn đàn hỗ trợ Firefox

I run normal firefox on linux. Fully up-to-date. Every time I quit the app, it reverts to a version of my profile from a month ago, and loads all the tabs I had open then, and then receives all the tabs that I sent to the device in the interim (~1 month). As I speak, it just caught the 60 or 70 tabs in this window.

I tried changing the name of my profile folder to randomstring.defaultOLD and changed one of the backups to randomstring.default. This didn't change the behavior. I'm still stuck in the loop. I saved my tabs with onetab, because firefox isn't remembering my session anymore. I thought it was something to do with updates, like it only loses its mind upon updates, but that's not true. It thinks it's updating firefox EVERY TIME, because the one time it's loading to 1 month ago it was updating, but I'm 100% sure there are no updates to firefox in my linux. It's just hallucinating.

The articles on restoring from backup are outdated. They say to use an html file. There is no html file. It's just folders for profiles, not html files. HELP!

I've been using kelly blue book to research new cars. Yesterday it would load the vehicle information, but when I click on the blue box "see pricing" it just reloads this page. Has worked fine for the past week or more, but yesterday started doing this?

kelly blue book

Thanks

brian

My Firefox VPN is still showing as nearing my limit, despite it now being October everywhere in the world. Why hasn't it reset to 50GB? I've tried restarting Firefox and it didn't make any difference. It still shows "Getting close to your VPN limit. You have 2.2GB of 50GB left this month."

When using shift+tab or ctrl+shift+tab to cycle between tabs in a window, firefox will occasional skip across one or multiple tabs. This will also happen when clicking tabs directly with the mouse. The tab that should be selected shows briefly before the browser automatically switches to one of the adjacent tabs. I do not have the setting "Ctrl+Tab cycles through tabs in recently used order" enabled. This doesn't happen for any specific tabs or windows consistently, and it doesn't specifically happen to unloaded tabs.

I have been having random crashes Firefox Snap on Kubuntu 24.04 (and now 26.04). Sometimes Firefox will run stably for over an hour, sometimes it will crash in less then a minute from (re-)launch. I have tried the usual troubleshooting steps of 'run in troubleshoot mode', 'refresh', disable plugins, but the crashing seems to happen even when running in troubleshoot mode. I also have not been able to figure out any kind of event or user-action that triggers the crash; it might happen while browsing, it might happen while I am not even at my computer. At first I thought 'the Devs will handle this', but it has been some 6 months so I think my case is not very common/pressing to the community. I'd like to take a more proactive approach in solving the problem. I am still a novice at software fixing, so I might have skipped or missed a very basic step in the '10 things to try to fix Firefox'.

Title. 156.0 had NVIDIA Video Super Resolution working just fine. 156.0.1 has broken it on my setup. Nothing I have done has brought it back - toggling settings, clearing caches, forcing it on in about:config, etc. The plugin seems to be broken.

Was working just fine for over a year prior.

Latest Stable Firefox 156.0.1 RTX 5080 Driver 596.49 (May '26)

Does not show as working in the Control Panel, and is clearly not working on any video site. YouTube, the BBC, and Twitch were the ones most tested.

Please consider a fix. Thank you.

It seems the sync server is keeping deleted passwords record placeholders ... for ever?? what is the point of this? User tracking?

he same with the credit card records BUT not eg bookmarks.

(server records as I can see using the about:sync extension..)

thanks for any help..

Not onlu amazon search is gone there are other search engines that I do not want. they were added but not by me! What's going on here? You're taking up my time undoing your messes.

Since the latest update, 157.0 (64-bit), google maps, google sheets and Bigquery all now exibit black screens where tables, spreadsheets and the map should be displayed. I did check if it was some interaction with the darktheme as well as extensions, but it is not.

I have gone through the same problem already, but it was corrected with an update and now it is happening again.

Firefox updates seem to be getting heavier and worse over time.

what have you done with the? "new" firefox since the last update and change, it crashes, it won't open websites and now it said prove you're not a robot and other miscellaneous things are going on? Can I go back one update? I dislike what you have done. Firefox has always been my first choice and not Chrome, I'm going to have to find another search engine.

Password Manager warns about password used in an account exposed in a breach but not what account. Why can't Pasword Manager give any detail on the data breach it warns about. Like what account is breached? Would be very helpful to know what account has been exposed!

Playback occasionally lags really hard for 1-2 seconds anytime I watch a video. This goes for all websites, not just youtube. It seems disconnected from buffering as it will happen even when the video is totally loaded. It doesn't lag out any other tabs, and switching to a different tab and back always fixes it (for that moment). I've already tried disabling hardware acceleration and webgl, but nothing changed. It happens about once every minute no matter what. I have a high-end pc, so that shouldn't be the problem. (or maybe it is, and firefox isn't optimized for some bit of hardware that I have) Thank you ^_^

Hi, I've three Browser profile, when I get new updates, no matter I at that moment be in which one of them but the update just reach one of the profiles. features like Built it VPN, weather widget and etc does not come to the others two. Please fix this one or if its a problem from me, guide me to fix it.

Hi, Both my wife and I have been using both Firefox for many, many years and only realised today that I did not have an account. I have two problems, both starting at the same time, (1) every time I use my computer (now both a desktop & a ASUS 17 laptop) my current tabs I don't have my original tabs which I rely on having when I have a project running, and (2) when I start my computer I have to go through the 'ticket the squares with bicycles in" to verify I'm human. If I close Firefox and very shortly open it again I don't get the check. For the first problem I've checked the Settings and they are as I have always had then to restart tabs that were present on shutdown. For the security check I've googled an explanation/fix but most times I get a suggestion to look at some setting which I can't find anywhere. Hopefully you can answer my problems. I synced with my iPhone 15, not too sure that I had any success as the prompts didn't line up with the displayed requests. My version of Firefox is 157.0 (64-bit) running on Windows 11 Version 25H2 (OS build 26.200.9457. I have updated to latest version Thank you, KenDiment

I am currently having a challenge browsing my offline videos downloaded on YouTube, and I noticed this since I recently updated my Mozilla browser. Formerly, even when my internet is down, I could open YouTube, and it would take me to my offline downloaded video, but now, when I am offline, it just shows Check your internet connection.

I messaged support yesterday, but I haven't received a reply yet. I am having trouble logging into my account because I no longer have access to the associated email address; however, I can provide specific details proving the account belongs to me so that you can link it to a different email.