Firefox Community Forum

I can run Firefox once after starting the computer. If I close Firefox, I cannot run it again. Any attempt to start says there is an instance of Firefox running so it cannot start. I did some research and for that running the following yielded some indication of a problem that I cannot seem to solve.

>taskkill /F /IM firefox.exe ERROR: The process "firefox.exe" with PID 10220 could not be terminated. Reason: There is no running instance of the task.

Something appears to have left this PID so that the computer thinks it is running when it appears that it isn't there.

Please advise. [edited email from community support forum]

Hi;

I'm using a Protonmail alias. When I copy my Hide-my-alias address in Protonmail using the Copy icon, the popup says Alias copied to clipboard it doesn't paste. Not sure if this is a Proton or FF issue. Looks like it's mot being copied.

More info:

Using Firefox

I clicked on my new HideMyAddress alias address, clicked on my alias copy icon, says copied.

It won't paste into the address field of a new email. Clipboard History is enabled. I can paste any History entry but not the alias I copied using the copy link next to the alias link.

To copy it to clipboard, I have to :

Open all alias' Sign back into account Highlight the alias address, copy Then it will paste

Tested with Brave browser:

Logged into Proton.me Copied alias and pasted into new email To address, it works.

Thanks for any ideas.

Immediately after my last Mozilla update, the system asked me if I wanted Firefox as my search engine. I clicked yes, as I always do when prompted. I don't know if this is the cause or if there's another connection I'm missing, but since then I haven't been able to access other websites. Every time I try, an error message appears saying "Oops, the system has crashed..." or something like that. However, if I use Google or Edge, everything works fine. How can I fix this problem? Can anyone help me? Thank you very much in advance.

my e-mail : [edited email from community support forum]

Hello,

 I have Firefox 140.0 on Windows 11 23H2.  I just noticed that the Favorites Sidebar text and background are both dark.  The History Sidebar does not have this problem.  Changing either Firefox or Windows color scheme has no effect.  I'm pretty sure this happened with the latest update. 

Thanks

All of a sudden, the text in my Bookmarks bar has turned black making it unreadable on the black background. Any idea why this happened and how I may revert the text back to white? Thank you for your help.

You need to re enable MetaMask. I have thousands of dollars that I can no longer access due to you blocking this extension. Get this issue fixed and let me know when you will get this corrected and what I need to do.

I need to enlarge the font on the bookmarks toolbar as I have a visual impairment. I can find ideas for the regular toolbar, but not for the bookmarks toolbar...oh, and I am working on a Mac.

Thanks in advance for any help.

I want to achieve windowed functionality of Firefox's F11 fullscreen mode, where there's no window borders nor tab/url bar, which pops in on hover. Having every pixel actually be web space is just preferable to me. This used to be possible in old Firefox versions simply by resizing a fullscreened FF window using a resizer extension or window manager (such as seen here, with version 55.0.3: https://drive.google.com/file/d/1klHdUHiKtLVITmrQnul8O1zF32l-Uz6c/view). At some point, something must have changed in FF's fullscreen API because it no longer responds to any of this.

I'm willing to pay anyone savvy enough to come up with a solution. Ideally by figuring out how to again be able to simply resize F11 windows. Note: "full-screen-api.ignore-widgets" isn't cutting it, there will still be a window border and the tab/url bar won't automatically pop up.

Cheers.

I need to know how to make subtitles readable again. I want bright white on dark back ground. This constant dim gray on light back ground is terrible. I am elderly, deaf in one ear and wear a hearing aid. I need the subtitles to be readable.

Please tell me how to fix them if it is something I can change. Or is it something the channel owner is doing? That same question applies to the YT bingo card video rectangles. Sometimes they are giant and in a single row I like the 3 wide display, like a bingo card.

Lastly, why do the video choices display on the right side of the screen? That makes the info below them unreadable. They used to be on the left side so hovering over the text is readable. Who is charge of fixing that?

You used to be able to set Contrast Control to not override other websites now you can't. What moron made this stupid ass decision that just degrades the quality of a once good browser?

When I open up my facebook page it loads but is blank. When I open my youtube channel it opens but when click video in opens I can see chat and can talk in chat, but the video doesn't play wheel keeps spinning. Have no problem on my phone or my tablet just Firefox. please send any questions to this email account since I can't access my mail [edited email from public community support forum]

I have been using Firefox with Dragon Naturally Speaking Professional 16.1 since 2022. Never had a problem with dictating into any boxes or search bars before today. Now I cannot dictate into those and I need to. I am a quadriplegic and ventilator dependent and need to use Firefox and be able to dictate into it. Can someone tell me what to do to get that to work again?

I've been trying to use the "Accessibility" -> "verbalize screen reader" on Google Docs, but it won't let me use the verbal functions. I have tried to download reader extensions in hopes that it would read the Google Doc, but it's not working. I have restarted my computer, the Accessibility is on, and tried to contact Google to see if it's an issue on their end but most of the information is only applicable for Chrome. I also tried to use "verbalize screen reader" on Chrome, and it is also not working there. If anyone knows how to use the Accessibility with Firefox and not Chrome, please help me navigate this. I have tried several Firefox extensions and none of the Text-to-Speech are working with google docs. I don't know why there aren't any, but suggestions would be appreciated.

Hello- Wondering how to turn off the "skip to main content" that continually pops-up on some web sites. This is a problem on a single Firefox installation and I cannot figure out which setting this could be.

Thanks in advance! -BD

I received a notice from centurylink about their changing my user I.D. from [edited] @q.com to [edited] @myctl.net beginning on 10/21/2025. I signed into my account, using the new email ([edited] @myctl.net) and now I'm blocked from my email / webmail Is firefox blocking my email account??

Thank You........Steven Could a tech. call me at [edited phone# from public community support forum] if help is available??