Firefox Support Forum

When I open a video on Twitch, YouTube,... and put the video on full screen, every time the video gets moved to the right. When I leave the full screen and comes back then the problem doesn't happen any more until I close and re-open Firefox.

I've tried it on my 2560 x 1440 144hz monitor and my 1920 x 1080 60hz, so it isn't due to the resolution of my screen. The problem isn't due to the dual monitor because my screen on the left has the same problem on the same side.

When I opened the Troubleshoot mode the problem was fixed. The extensions I've aren't causing this ( because I've the problem without ) and my theme too because I've none.

I already got this problem a while ago and don't remember how I fixed it. I've putted a screenshot of the top left of my screen.

When loading a recorded video from https://www.worldsbk.com/ it fails to load. Times our instead. This has been going on since last October. There had been a recent update but I can't confirm that it coincided with the failures. It had worked for several years with no problem.

I have the latest Firefox update and level. Running Windows 10 fully updated.

With Devtools open and Responsive Design Mode active, selecting a device from the Device list and then right-clicking causes the context menu to appear in the lower right of the screen (figure-1 or first image if filenames aren't shown).

Depending on where I click, the menu shrinks (figure-2, second image).

Using the same device, if I type, "412" in the width box, it changes to Responsive Design Mode. After that, it works as it should (figure-3, last image). Notice that I clicked in the exact same spot as the first image.

I've tried safe mode; deleting all my profiles; none of those worked.

Updated Firefox, can no longer connect to Yahoo, PR_CONNECT_RESET_ERROR I have completed ALL steps in archived threads pertaining to this issue, and yet issue remains. Is only happening with Yahoo. Have emptied cache and cookies, created exceptions for Yahoo sites, disabled antivirus, etc. , have taken all steps in previous archived articles pertaining to PR_CONNECT_RESET_ERROR Once or twice, out of hundreds of tries, it seemed to slowly load a yahoo login screen incorrectly, and inoperable as shown in attached screenshot Please help !

My laptop set-up is practically identical to that of my PC, but the latter doesn't exhibit the same malfunction.

I've tried anything I could, including reinstalling the browser, removing all of my bookmarks (about 10,000) and addressing extensions (Decentraleyes, Default Bookmark Folder, Disable Tab Detach, Flagfox, I don't care about cookies, Keepa, Notifier for Gmail, Privacy Badger, To Google Translate, uBlock Origin, Undo Close Tab, Video DownloadHelper and Youtube's Annotations No More), but not even safe mode improved the situation in the least. Windows Defender also hasn't detected any malware and my web surfing habits are as safe as it gets.

The only deeper data I could gather is that the problem manifests with a progressive, rapid surge in CPU and RAM usage; the former, for example, is saturated to its total 16 GB in a matter of about 20 seconds.

My laptop is a Dell Inspiron 7586 with Windows 11 64 bit; Firefox version is the latest, 100.0, and, by the way, none of the recent updates has improved the situation.

Thanks to anyone who might come up with an educated guess!

While I'm doing my emails, I get a yellow error message: this page is slowing down your browser. To speed it up, close this page. That's my hotmail inbox. Happens often. If I close the hotmail then reopen it it works ok for a while, then does that again. And in general it's slow. Feels like firefox and hotmail are at war with each other...

Since upgrading to 100, I am unable to log in to Florida Unemployment site. I have followed all their recommendations and still am unable to access. Also, when I click on an item, new tab is opening in place of one I clicked on instead of new tab.

Since installing v100 I have had problems where tabs will not load anything. They will work fine for anything from 5 minutes, to an hour, then randomly just seem to hang. The only way to fix it is to close firefox and restart it, which is a PITA if you are trying to research stuff with multiple tabs and so on.

Additionally, some customers I support started getting SSL_Error_Bad_Mac_Alert errors... only on Firefox, and only when accessing google, and even then it might work fine for half a day, then continuously get that error- but open same page with chrome, and its fine. PCs on the same LAN also running firefox also had no issues with google at the same time as one of the effected PCs, but once updated also started getting the error intermittently (but again still not necessarily at the same time as each other). As you can imagine google is used a lot, and so this can be particularly painful. I have tried most of the suggested fixes for that error, and prior to the upgrade there were no issues.

Issue has occurred on both Windows 10 Pro, and Windows 11 Pro

Is there a way I can roll back one or two versions? It is really starting to become disruptive, and if it continues we will have to look at changing the deployed browsers completely.

Suddenly, when I search the web with a topic search term, e.g. "thrombin", I get the error message: 'The page you are looking for cannot be displayed because an invalid method (HTTP verb) is being used.' Can you help me resolve this problem?

My foxfire did an automatic update. then it opened and there was a question box, "do you want to update to the latest version and reopen"... i clicked yes. and now a couple hours later its just showing an hour glass time icon is just popping up. Do i just need to wait for it to update? help help THANK YOU

When I load a page the first time, everything loads normally. Then if I refresh the page with CTRL-R, resources on the page (such as .js files) very often (seemingly 75% of the time) only partially load and therefore parse errors occur in the console. To reload a page, I have to hit CTRL-SHIFT-R to bypass cache and then the page loads normally again. I can also just launch the page in a private window (this loads properly), close the window and launch it again in another private window (this loads perfectly still) but it's becoming a chore to juggle with private windows only to reload a page I'm working on. I can see the resources loaded under the NETWORK tab in the console but they don't seem to be available to the page renderer or something.

Is this a bug in v100.0.2 or was I only having a bad weekend and all of this is just a random glitch that will go away soon? I've never had a problem like this with any previous Firefox releases (even v100.0) and I've used FF for approximately 15 years. It immediately began to happen after the v100.0.2 update!

What I have done so far:

- Exit out of Firefox and launch it again. - Rebooted the computer. - Site Information > Clear Cookies & Site Data - Waited 2 days for another FF release in case this was a bug and it rapidly got fixed (no update rolled out since). - Help > More Troubleshooting Information > Clear Startup Cache

Am I going crazy or?

This seems to happen on an annoyingly frequent basis. Since restarting my Windows 10 PC Firefox has decided to ignore the settings and scrolling the mousewheel causes it to go back/forward in the history rather than down the page.

I've noted there are questions/solutions to this going back to 2007. None solve my issues with it.

middlemouse.contentLoadURL is false mousewheel.default.action is set to 1

Any advice would be greatfully recieved.

Hi! I've just tested my fiber connection (free.fr) and with Edge Chromium 81 the upload rate (nperf) is 100 Mbits/s faster than with firefox 76.

On the same server at the same time or nearly. Is it normal? Can I improve the score with firefox? thanks!

So I've been having a problem with Firefox. Every time I open Firefox the last add-on on the taskbar is grayed out and doesn't work properly, it also makes it impossible to open any website, it just load infinitely. I have disable/enable the last add-on on my task bar in order for Firefox to work properly. It's really annoying and it just started to be like that for about 2 week.

Hello,

One of my last Crash ID report : 49e3c347-5deb-4659-b9d1-281b00200514

I experiment this problem on two of my computers. Both are running Debian Buster. If I don't forget to quit Firefox before shutting down my computer, then I believe I won't have problem the next time I switch on my computer and launch Firefox.

However, as most of the time, if I shutdown my computer with Firefox still being open, it seems that Debian Buster doesn't close properly Firefox. In fact, if Firefox was still open when I switch off my computer, I can be sure (100% of the time) that at the next startup, Firefox won't be able to launch the previous session and I'll have to "restore my last tabs".

No other software seem to suffer from the way Debian Buster switch off. Only Firefox.

Thank you for any help one could give me,

Regards, Thatoo

I have a tab with gmail (mail.google.com). When I go to another tab and then come back it occationalls displays "[object window]". This only happens occasionally and is fixed when I refresh the tab. Any ideas on what might be causing this problem? Thanks.