Firefox Support Forum

I'm trying to use a manual proxy server for Firefox. When entering the proxy address and port number, Firefox outlines the port number field in red and disables the OK button thus refusing to accept my assigned port number. I'm trying to use port number 29842 which was given to me by the proxy provider.

Why can't Firefox copy text to the clipboard anymore? It won't copy text from a web page, from a URL, or even from about:support "Copy text to clipboard"!!! I'm using version 1.22 64 bit on windows 11. I've reinstalled Firefox but it doesn't make a difference. I've tried "Troubleshoot Mode" and it's still broken!!!

I can paste into Firefox but something has broken copy!

When trying to open my protected browser with firefox I keep getting "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window." I have refreshed and re-installed Twice! I have followed the instructions to go to file (using %APPDATA%\Mozilla\Firefox\Profiles\) and make sure it is NOT Read-Only and to delete the parent.lock in it. Yet it keeps going to Read-Only and the parent.lock keeps re-appearing. The day before everything was working. I have tried Protective Browser with other browsers and it works. 1. Why is the Protective Browser not working? 2. Why is the File going to Read-Only and 3. Why is the parent.lock keep returning? Thanks

Roboform extension not working at all since the 123.0 Firefox Release February 20, 2024 update. It works fine on all of my other browsers. Please fix this. I have already tried to reinstall it. It acts if it wants to work and then it disappears.

I Cannot restore 3/1 or 2/29 Bookmarks!!! What's going on with Firefox??? Now, all there is in my Bookmarks are five listings saying, " BS2trash folder for undo of bookmark deletes- DO NOT REMOVE ..."

I wouldn't have to do this except that somehow, a Bookmark folder disappeared. All too often is has occurred. I have many, many very important Bookmarks. How can I get them back---and soon?

I was on a teams meeting because I wanted to do a study session with someone on another country. As part of the homework I needed to do, I needed to listen to some audio. I changed my windows audio devices to output through the Communications device for the headset. Then I played the audio on a tab. The audio played for a few seconds before stopping again.

I understand that this is behaviour intended to let you take a call or meeting without having to manually pause any open tabs you might not have at hand, but I would like Firefox to understand I really want that audio to play without thinking it knows better. Is there any way to disable this behavior?

I try to see pictures from CCTV camera by IP adress. After log in I see massage that pligin file is not awailable and it is nesessery to download this file. After download file vplugin.exe, I install the software restart the browser and still have massage about plugin file. Did you ever met such problem before?

All of the files I try to download fail immediately. Even extensions will not download on firefox. I have uninstalled and reinstalled and checked the download location. Downloads work on other browsers such as Chrome fine but nothing will download on Firefox.

A virus file, from a website, keeps automatically downloading each time that I open my Firefox browser. I have tried clearing the cookies and history but the file keeps showing up as downloaded but the actual file is not in the general download folder? I only see where it download and says downloaded in the download list. The file contains a virus and also Firefox states that its dangerous. I never clicked to open the file.

How to stop this from keep automatically downloading when I open my browser? Please help ASAP Thanks

The file is: 7z2201-X64.msi download tracked to: 7-zip.org Virus website address: www.7-zip.org/a/7z2201-x64.msi

I often see a Shortcut on my New Tab that I have never gone to, which says "sponsored" on it. I do not want these ads. I have looked up the answer: https://support.mozilla.org/en-US/kb/sponsor-privacy?as=u&utm_source=inproduct I can manually delete a sponsored shortcut once, but this does not stop them from coming onto future New Tabs. My problem is, the long-term answer simply does not work. Settings -> Home -> Firefox Home Content simply does not contain a section that says "Sponsored shortcuts" and therefore this solution is not accessable. I am on Version 120 as suggested. What is going wrong? How do I prevent these ads from appearing on the New Tab page?

I'm at a loss here, problem is in subject line. This has happened for a long while and has persisted through various versions, I have attempted to:

- Alter my antivirus and internet protection settings to allow as much traffic as I can. - Download addons as XPInstall files and try and use the File -> Open File option in the Menu Bar - only returns a line about not having permission, despite having Admin permission.

My Firefox Version is the current 118.0.2 (see: attached image).

Thanks in advance.

How do I paste in the game forge of empires thread windows with my mouse and without clipboard keyboard options in firefox, it will only allow me to use clipboard control V for keyboard not my mouse, using my mouse to select all, copy, it's fine, cannot use paste with mouse, only in browser search bar, i do a lot of pasteing or i would not ask, it works with a diff browser, Firefox is the best for gameing,

Firefox displays text on the .xml page as html code instead of rendering is as normal text. The layout and images on the page look as they should.

There is nothing wrong with the page, as it is rendered perfectly in Chrome.

In addition, this page doesn't display at all on the phone. When I click on the link it asks me to download it and then asks me which app I want to open it with - instead of simply rendering the page.

I have seen some old threads on this topic, it looks like this issue haven't been resolved for few years.

My question is not just about fixing it in my browser but at the root cause. This page is the RSS feed of my podcast which many people want to access and many use Firefox as their browser. Unless I tell everyone to use Chrome instead.

Can someone help? thanks.

So I just picked up a new laptop (ASUS Vivobook 16x), and everything is fresh on it. Additionally, this only affects some video content in Firefox, with Edge browser unaffected. In brief, what is happening is that within a couple hours of having the browser open, certain video content stops working, specifically Twitter/X videos just spin, YouTube previews stop working, and videos continually load. Netflix videos continue to work, but hover previews stop functioning. I even check the 'Stats for Nerds' on YT and it shows 0 KB network activity in Firefox.

I've tried every basic action I can think of:

• Turning off extensions (only use Ublock and Bitwarden)
• Browser Refresh (x3)
• Reverting from 120.1 to 120.0, and now 199.0.1
• Clearing the browser cache
• Reinstalling NVidia and Intel Drivers
• Running in Safe Mode

Only by doing a refresh or completely closing/opening the app gets videos to function again. This doesn't affect the old laptop or my desktop, which makes me think it's a rogue driver--but then why would Edge function without error over the same period of time?

Are there any settings to play with in the browser that can help diagnose?

Hi all!

I am using Firefox Multi-Account containers with Firefox 120.0.1 (64-bit) and the New Outlook desktop client with Windows 10(*). I have more than one Office 365/Outlook account, so I use different containers for each account.

Whenever I click on any link in New Outlook, it opens in one of my Firefox containers rather than in a default No Container tab.

Unfortunately, it opens in a container where I am logged into a different Office365 account than the one I use for the desktop client. This means any Office or organisation-specific links fail to work unless I copy and paste the link across.

Is there some way to force Outlook to open these tabs as No Container?

Thanks, penguinoid

(*) I'm using a university owned/managed computer and they've disabled the option to update to Windows 11

I'm a game developer working on my first WebGL game from Unity. For the past day I've been banging my head around getting controllers to work, only to discover the issue is with Firefox - my build works fine in Edge and Chrome.

What's the situation with Firefox WebGL support? Is this likely to be fixed at any point or should I inform users Firefox doesn't work (and be pressured onto using Chrome or something else myself despite wanting to use Firefox?)