Firefox supportforum

In order to use my preferred browser, MetaGer, I have to change the default search engine every time I open Firefox. After setting the default search engine, Firefox reverts to Google after relaunch. How do I fix this? I'm using Firefox 85 with OS 10.13.6 High Sierra. Thanks

Does anyone have experience with this phenomenon:

When you click on a torrent link on a page opened in Firefox 83 (and above), the first window pops up, but the second one (in which uTorrent would come) is no longer. Nothing happens. Specifically, the entry is C: \ ProgramData \ Microsoft \ Windows \ WER \ ReportArchive \ AppCrash_uTorrent.exe....

If I revert to Firefox 82 or 78.6esr, the error will not occur.

If I choose not to download uTorrent but to download the torrent file, it works fine with all versions of Firefox.

I haven't installed any new Add-ons for over a year but suddenly today the Telegraph.co.uk website is only displaying images. I disabled all Add-ons, re started FF but that hasn't fixed it. Safari is okay though. Mac 10.11.6 and FF 78.10.1esr Thanks for any tips, can't do without a proper newspaper. Kryters.

Hi,

I think I broke the ALT keyup events in some way, probably with my configuration but not sure how.

If I put this code in the console : `document.addEventListener("keyup", e=>console.log('alt: '+e.altKey+' | '+String.fromCharCode(e.which).toLowerCase()));` and the press the keys, I have the following results:

- pressing "I", I get the expected "alt: false | i" - pressing "ALT+I", I get "alt: true | �"

I do not have the problem with other modifier keys like CTRL

Hello together,

when implementing canvas graphics with 2D context, I notified that the latest FF 87.0 on windows is much slower than chrome/edge/opera on windows and also much slower as safari on mac. I drilled into detail and detected that it was caused when drawing polygons with color gradient (see attached image). Means that using canvascontext.createLinearGradient() instead of flat colors makes it slow. On the other hand using flat colors is perfectly fast.

I wondered, because I had much better experience with FF and installed an earlier version (78.9.0esr) on the same windows workstation and the problem was gone. Seams, that some change made the newer FF slower with this type of graphic..

CPU is i7 8650U 1.90 - 2.11 GHZ, OS is Windows 10 version 20H2

But the effect is the same on all windows workstations I tested. Would be happy to see, that I can use FF again with these type of graphic apps.

I occasionally visited this site https://referti-empoli.uslcentro.toscana.it/portalepaziente_user/user-login (it's a site managed by the local health authorities). I am reported that a safe connection cannot be established with the message PR_END_OF_FILE_ERROR. I am not shown any option to consider this site SAFE (no matter what, it's SAFE and I need to access it occasionally). I also use ESET anti-virus software. I can access through other browser, at least the show me it couldn't be safe but allow me to go on. I don't want to switch browser once in a while to navigate. I want to use Firefox in any case (or switch to another one that allows me to). How can I make it work (apart from deleting cache, temp files and history, which did not work)? Thank you.

I use 3 profiles (work, private and media) side by side. When I open external links I have no control over which profile will open the link. The link is opened right away (so no profile manager interference) in a random profile. I do want it to open right away, but ideally would like to easily set a priority order for profiles to open the external links without having to restart the profiles.

Firefox open tweeter's tabs only in private window, can i so something to fix this and be able to open it even in standard window please ?

im on mac os X 10,9,5 with firefox 78,15,0esr

We are receiving this message from Ebay when attempting to list a product (see below). Any suggestions how to work around it please? Thank you.

Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to scgi.ebay.co.uk because this website requires a secure connection.

What can you do about it?

scgi.ebay.co.uk has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

The issue is most likely with the website, and there is nothing you can do to resolve it. You can notify the website’s administrator about the problem.

I don't have any account icon in my tool bar and no option to sync. I try to login/sign up to sync through this page https://www.mozilla.org/en-US/firefox/sync/ and the loading icon just spins and spins and spins and spins and spins for.ev.er. Please help. I just want my browser to sync on different devices.

Its been happening for several months. I tried doing a refresh firefox and a safe mode firefox. Neither solved the issue. Screenshots attached. Mac OS 10.15.7 Catalina. Firefox 88

I thought my issue may be similar to: https://support.mozilla.org/en-US/questions/1308429

Hello, I'm running Firefox 78 on fresh Debian Stable installation and I cannot access certain websites. I followed step-by-step the instructions by Mozilla Support found here, with no result. Of course, I tried completely uninstalling and reinstalling Firefox, renaming .mozilla folder to create a new settings folder, deleting .cache/mozilla etc. I use no proxy, and I can visit all those certain websites form other browsers of this installation. And I'm looking for a solution for more than 2 weeks now. Any help is welcome!

Hello! After various problems with my MacBook I had to delete everything from my hard drive. After installing BigSur 11.2.3 and restoring things from my TimeMachine backup all my Firefox bookmarks got lost. I understood how I can restore them but I don't know what file to look for in the TimeMachine backup that should contain my bookmarks... I would also like to restore my passwords if possible. Anyone can help?

Greetings: My computer was shutdown and restarted by a colleague and I seem to have lost my browsing history and all the open tabs from my last session are not retrievable — restore previous session is not available / appears grey'd out. I am on a macbook pro running Big Sur and I do have a time machine backup of that last session — can I get back those open tabs and browser history from my time machine? Can I do it a la carte or do I need to wipe my whole computer and restore from there? Thanks in advance for your thoughts, Sam

In new version of Firefox (89) Default theme is installed but refuses to load properly it looks like the Light theme, when i am switching it to Light theme and after Default theme there is no difference it looks like Light theme anyway...Can you help me with it?

Greetings,

I just updated to Firefox 78.15.Oesr and now am unable to reorder my open windows. As a student, I may have several projects open at a given time, and like to have the project I am currently working on, next to the open Firefox window, for quick navigation between the browser and project. This option seems to have been disabled with the update. It is enough of a deal breaker that I may pursue reverting to the previous version of Firefox.

Also, the inability to delete bookmarks, and to close the bookmark window after selecting "show all bookmarks," remains a persistent frustration that I am surprised has not been addressed. With so many browser options available, these subtle annoyances are enough to prompt me to again shop around for alternatives, after being a Firefox devotee for over 10 years.

Thank you for your help, Josh Baker

Firefox has been my favourite browser for years but I am about to uninstall and kick it to the curb!!!

Every time I want to attach/insert an image (on many different sites/platforms/apps) it freezes ~ I have to shut down and start again, losing whatever I have been working on. I have uninstalled and reinstalled a few times and have checked ~ all is up to date.

Any advice would be greatly appreciated!

Thanks a mil!

I've been struggling today with accessing two systems on my work laptop. As I'm an administrator on both sites, I've been purposely using "private mode" browser sessions in Firefox (my default and fav) but I was surprised to see that the private mode appears to be "save" some of the session data from those systems - at least temporarily until I close all of those windows entirely?

I log in to one of those corporate sites with a username + password, then attempt to login to the other one in a separate tab, but it immediately attempts to auto-login me in with the credentials from the first site (which doesn't work as both sites require a different username/password for security reasons). I tried several combinations: I used separate private browser windows (instead of tabs) and the same thing happens. It's like it shares data across the instances? I also tried the reverse - logging into the 2nd system first on a fresh instance, then login to the first, and the same thing happens with a similar "invalid login" error.

Maybe its something weird about the auth on our network, like SSO? ...

I have noticed similar though where I've had other, multiple private browser sessions open on my personal laptop and even though I've closed one of them, activity from the site I closed has continued to happen in the background because the other private windows remained open ...