Firefox Community Forum

For a while now firefox has been unable to enter fullscreen when pressing F11. Instead all it does is move the "Scroll forwards", "Open a new tab", and "List all tabs" button over slightly (The buttons on the top right, next to the minimize and close buttons).

I don't know what's going on with firefox.

Firefox Version 142.0.1 (64-bit)

If I have taken photos in past years on a particular date, I get an email from Microsoft to review them. I normally do it on my phone, but today tried it from my computer. The path is "One Drive" "Photos" "Moments" and then "On This Day." If you click on the photos that in the graphic that looks like a movie strip, a montage of the photos shows up and you can also click on one. However, in Firefox, I click on a picture and the screen goes gray, but nothing ever loads. I thought it was a Microsoft issue so used their help function. The rep and I tried it, then cleared the cache, then tried it in a private setting. We got the same result every time. Then he tried it whatever Microsoft's browser is called and it worked just fine. They said it was a problem on the Mozilla Firefox end, so I'm reporting it. Please let me know if you can help me make it work. I don't like using anything except Firefox.

Hello everyone,

I’ve been using Firefox for 5 years now and I absolutely love it. I recently bought a new laptop, but I’ve run into an issue. On my old laptop, I was able to use multiple Firefox profiles at the same time—similar to how Chrome handles profiles.

On the old setup, when I clicked the three-line (menu) button, I could see my second profile there and switch between profiles with just one click. After installing Firefox on my new laptop, I can’t find that option anymore.

I know some of you might suggest using about:profiles to switch profiles. Yes, I’m aware of that method, but I find it inconvenient because I’d have to type about:profiles every time, which is a bit of a time waste for me. I really want the same quick-switch option I had before.

How can I get that functionality back? Any help or suggestions would be greatly appreciated!

I’m already using the latest version (142.0.1, 64-bit).

Thanks

Since upgrading to Windows 10, I can only access my Yahoo email using Microsoft Edge. When I try to access in Firefox or Google Chrome, my access is denied. I've tried clearing cookies, browser history, rebooting my router, etc. Any ideas I can try?

Mozilla Firefox began to crash all the time; crashes happen almost every ten minutes, and it happens with every site. It still lasts about for several weeks. I tried to reinstall Firefox; I updated my drivers for my computer; I cleared cash and history in the settings; I tried to delete some files from Firefox's folder. All these things did not help. The crashes may happen with any site, and it can happen any time. I have no problem with memory shortage. My system consists of Ryzen 7 5800x, Radeon RX 7800 XT and G.Skill Flare X (for AMD) DDR4 2x16Gb.

Firefox kept eating my RAM, running dozens of processes. I have gone into about:config and set the dom.ipc.processCount to 1 - then I restarted Firefox and found 5 processes running straightaway before even using the browser. I closed it down and have started it again and now there are 11 processes running with just one tab open. Firefox(9044) Utility(7552) JavaScript oracle Network (15912) Data Decoder (11364) GPU (18744) About pages (12536) Preloaded new tab Extensions (20544) Preallocated (16132) Preallocated (13780) Preallocated (16044)

The problem repeats on three different computers which are not infected with malware. One computer with slightly less RAM I now cant even use Firefox at all (though all other browsers work fine) because the tabs constantly crash due to the high number of processes. Is there any way to set the process limit low in a way that Firefox actually responds to?

I recently installed Win 11 on a new Acer Aspire (with MSI MAG244F monitor) but the issue seems to be present on my Acer Nitro 5 with built-in monitor as well.

I don't think it's an Acer issue but I am only running Win 11 on the two Acer machines. If I open a web page with colored graphics or pictures and then drop down a menu of the browser (bookmarks, etc.) the colors of the graphics bleed through. It's annoying and somewhat obstructive. It does not occur if a window from a different app is opened on top of the browser window no matter how bright the colors are.

I attached a few edited screenshots to show the issue. The edits are only to cover personal information etc.

The issue seems to be color saturation and does not occur on my other Win 10 machines or in other browsers. Not even the same version Firefox on the Win 10 machines.

Is there a way to increase the opacity of the drop downs or lower the color saturation in the Firefox browser?

when I go to icloud.com to view and download photos and all my icloud stuff on my phone, I can no longer sign in using firefox. I turned off the shield security but no help. There used to be a pop-up that let you enter the code apple emailed you so you could access your icloud stuff on the web. Now there is no place to enter the code they send you. I enabled pop-ups too, but that didn't work. Help! I need my photos! And I use that site pretty much constantly-

Hello All -

Over the years I have saved many bookmarks across several different devices. Therefore the bookmarks vary between devices. Is there any way that I can tidy up my bookmarks, deleting many of them, on my main machine and then have all the other devices Synch to that list only?

I have tried deleting ALL the bookmarks on the "subsidiary" devices and then synched them but that didn't work. I think I'm asking whether one device can be made the "master" for all the others to Synch to that one and none of the others.

Hope that's reasonably clear.

Thanks,

Ian.

I am unable to sign into the iCloud web page on Firefox. I can sign in on Microsoft Edge, or on the Safari browser on my phone, so this is clearly a Firefox specific problem. When I try to sign in, the page skips the option that verifies my identity and goes straight to a message saying "Failed to verify your identity, Try again" without allowing the verification to occur. The verification would occur if the page would allow it to, as it does in the other browsers I mentioned. This was working fine last time I logged in a few days ago, so this is a new problem. I could switch over to Edge, but would prefer to use Firefox, if I can. Please help me. Thank you.

Using Firefox--When I try to access the daily set of images that comes in an email representing memories for this day which is pulled from my Onedrive Photos, all I get is a dark blank screen with a subtle pulsing wave as if it is searching.

I get the same thing when I go directly to my OneDrive Photos and try to pull up the daily photos there.

However, changing browsers and using Google Chrome--I can view the images in the memory email as well as those on my OneDrive directly

What does Chrome do that Firefox is not?

I recently had another browser related issue on a different problem trying to register online with Directv which would not complete with Firefox but when I used Google Chrome instead of Firefox, it worked.

This made me wonder if the above OneDrive image problem might be browser issue. Sure enough, it was.

I really prefer Firefox and I do not want to have to go to Chrome.

I moved to the Firefox flatpack after the Debian version couldn't display the code inspector/ web developer tools anymore (it was blank amid other likely javascript-based rendering errors). I only include this context in case some one else has the issue and searches for it.

I want to sync all my tabs from the Debian version to the flatpack version and similar to this solved issue I cannot access those tabs from the firefox view. However I am also unable to access these tabs from the sidebar. I am only able to access these tabs from the account menu but this would have me open each tab individually which is not feasible for me.

Is there a way to fix the "Check your internet connection If you’re using a firewall or proxy, check that Firefox has permission to access the web." error that comes up in both the Tabs from other devices sidebar and Firefox View menu?

I'm conducting research on the web but nothing is being recorded in my search history which is really annoying as I need to refer back to it at times. I can find it under recently closed tabs. Please can you advise what is going on?

https://support.mozilla.org/en-US/questions/1248171

I saw bunch of threads which suggest to enable "ctrl+tab cycles through tabs in recently used order". It does what I need, but in previous versions I used to press only ctrl+tab. While I was holding ctrl I could iterate over tabs via tab key. After releasing ctrl selected tab was chosen

It differs with current behavior where you press ctrl+tab and after releasing all keys pop up with tabs is still be viewed and you need manual action with space/enter/mouse click to open selected tab

Is there any way to use only ctrl+tab without any manual actions required like it was back in the days where after releasing the control key selected tab is opened?

This morning (08/28/25), I updated my browser to v142.0.1 (64-bit), and Facebook as well as other sites have been affected to the point that I can't even see contents now!!!!!!!

I (God forbid) opened the same sites in Edge, and there's no problem viewing them on Edge.

Is there a way that I can roll back this latest update, because I had no problems until this morning. I'm running a Win 10 Pro OS.

I follow the instructions to pin an extension, but when I click on the jigsaw icon, I'm taken to the add-on manager page with the ability to review recommendations and manage the extensions and themes. There is no option to pin any extension. I saw this issue on an expired post to Mozilla but the answer was incorrect.

Any ideas? I can't access my password manager extension even though it's there....

I want to unsubscribe form emails from a company MyHeritage, but when I click the link the page opens then instantly greys out so I cannot do anything. This happens with another trusted web site as well

How do I stop the attached Newsmax webpage error message that I encounter daily? I am using Firefox on a Macbook with OS Sequoia 15.6.1. This error message requires that I switch to Brave to view Newsmax. This has been a longstanding problem with Firefox which I've posted before to no avail. Can anyone advise what the problem is? Thank you.