Firefox Support Forum

New computer, running Windows 11, McAfee LiveSafe came with for 30 day trial. I use Firefox, have since 1997. Just added Mozilla VPN. Old computer ran Xubuntu. Windows 11 needs antivirus because it's Windows. So. How compatible are McAfee LiveSafe and Firefox with Mozilla VPN? What suggestion, if any, does Mozilla have for an antivirus program that will work well for Windows 11 but not mess with Firefox and Mozilla VPN? Thank you.

Is Firefox will support this feature ? Or at which version will support ?

File System Access API

My picture-in-picture remains in full screen, even if I double click with my mouse. When I click the ESC button it just closes completely. I have restarted both Firefox and my computer, but I keep getting the same problem. Not just in YouTube either, also on other websites.

I can no longer print from firefox. The final print always comes out 1/5 +- size and is unreadable. It doesnt matter what king of a document it is and if I go to chrome or edge it prints fine. This began occurring I believe after the last version.

Hello team,

I'm not sure what happened, but I was not able to open Firefox after restarting my PC. I currently run Windows 11 on a fully upgraded rig.

Up until today, I have been trouble free. Error 1: "Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window."

I tried several options - and have been googling/trying several steps for a couple of hours (after each step, I restarted the PC):

1. Uninstalled and then Reinstalled a fresh copy of Mozilla 2. Attempted to use Command Lines to open Firefox https://wiki.mozilla.org/Firefox/CommandLineOptions 3. Opened Profile Manager and attempted to create a new profile - when I did this the new profile would not display in the Profile Manager, but it would display in the Profiles folder under Appdata [I tried this multiple times] 4. Deleted the profiles.ini file

After deleting the .ini file Error 2: "Your Firefox profile cannot be loaded. It may be missing or inaccessible." 1. Uninstalled and then Reinstalled a fresh copy of Mozilla 2. Opened Profile Manager and attempted to create a new profile. After following the Profile Wizard, another error pops up: "An unexpected error has prevented your changes from being saved."

I am completely stumped. I hope you can help, Sean

Before I took my computer to a repair facility and had to reinstall Firefox, my recent activity bar had all the websites I use and wanted quick access to along one lovely line. Now I have a bunch of "suggested" crap Firefox must be getting paid for along my recent activity bar. I've never visited these pages and selecting the menu trying to dismiss them doesn't work. How do I eliminate the sponsored sites and get what I want along the recent activity bar?

The requested URL was rejected. Please consult with your administrator.

Your support ID is: 15199799165570062406

This is the site https://one.walmart.com/content/usone/en_us/company.html this site I connect to for work related issues, I can use private browsing, but not the regular browsing.

For at least the last few months, I've been having problems with printing. It doesn't matter if it's a web page, an attachment in yahoo.mail or a return label from Amazon, the print is too big to fit on the paper. If I switch to Edge, it comes out fine. I have used Firefox for years and never had this problem till now. Please help.

Hi , FIREFOX IS UNABLE TO OPEN MY WEBSITE www,gpecompany.com please do the needful in order to open the website.

i received the below message

Hmm. We’re having trouble finding that site.

We can’t connect to the server at www.gpecompany.com.

If that address is correct, here are three other things you can try:

   Try again later.
   Check your network connection.
   If you are connected but behind a firewall, check that Firefox has permission to access the Web.

So I wanted to join Rally, but I am concerned about granting access to my passwords and logins to the Rally clients. If I create a new profile and sign in with my only Firefox account will Rally clients have access to my passwords and logins from other profiles?

Thx.

Just now, I tried to use "Email Link..." under the File Menu and got a pop-up asking me to "Choose an application to open the mailto link." I have seen this before, several times, and usually fix it by going to Tools > Settings, under General > Applications, select "mailto" under Content Type, then select Gmail from the drop-down menu.

This time, however, Gmail is not presented as an option, in this pop-up. Clicking "Choose..." just opens up a Windows Explorer file-picker window.

I tried to fix this in Tools > Settings, under General > Applications. There, "mailto" just shows "Use other..." and if I click that, the "Select Helper Application" pop-up window is basically blank, with a message at the bottom saying "No applications were found for this file type."

I refreshed Firefox but it did not solve the problem.

I have tried to attached images but they will not upload.

I am running v100.0.1 (64-bit) on Windows 11

I had been using Firefox browser for awhile, but because of playback performance issue, I have to using another browser just for video playing, especially for 4K video.

Compared to Edge, Firefox seems taking more resources to playback the YouTube video and more heat. When look at the Task Manager, the Video Processing is 0%, and GPU is running significantly more resources on '3D'.

Since the latest (5 May 2022) update to Firefox (to Firefox 100.0) my Gmail account does not work properly on my desktop running W11. Gmail frequently disconnects for varying periods, then reconnects, only to disconnect again almost immediately. Gmail will not let me open another account from within the current account. This does not happen on my Android phone where Gmail works properly. Neither does it happen when I run Gmail through Edge on my desktop. Hence I presume it results from an interaction between Firefox100.0 and Gmail. My wife has exactly the same problem using her Microsoft Surface Laptop under W10 since this latest update.

Hello,

I believe this issue started ever since I upgraded my PC to Windows 11, and has persisted through a full reinstall. I continually get intermittent SSL errors of all types when visiting any websites. Simply refreshing the page temporarily resolves the issue, but I'd estimate 20% of the time when I try to load a webpage I get the error. This does not happen on any other browser, or Firefox on any other device on my network. Interestingly I believe this even happened on the same machine inside a Linux VM in VMware, but I'm not 100% I am remembering that right. So far, I have tried various fixes including resetting certificate authorities and changing Firefox to use the Windows certificate store in about:config, but nothing has worked so far. I'm all ears for any ideas.

Thanks!

More and more I'm having to go to other browsers like Chrome or Edge to open certain websites as they do not work through the Firefox browser. Why is this and how can i get them to work before i change browsers permanently?

Hello,

I noticed that a setting on the about:config page was removed: the "security.csp.enable" setting. I was using this setting to disable CSP to be able to load local JS scripts on some non-locally hosted sites, for debugging and development, work related purposes.

Was this setting really removed? Is there a way to disable CSP on Firefox on the latest version?

Thanks! Gabriel.

Hello Everyone,

After inserting the proxy information, webpages in the container tab refuse to load/connect, I insert the IP address and I've also tried the Fully qualified domain name, using the type://host:port syntax, I get "The proxy server is refusing connections" and "The connection has timed out" error messages.

If I setup the proxy via the settings menu the entire browser uses the proxy server address, I am trying to specify a different proxy server for each container.

Hi, yesterday I got a new computer and I installed the Firefox on it, but when I started the browser for the first time, it was a mistake (I pushed the button by accident), so I immediately closed it. It was asking something about allowing the use of coolkies, but I didn't answer to that and simply closed the window.

The thing is that since then my firefox don't load properly. The buttons and the autocomplete are normally responding, but all pages (including the settings) are blank and sometimes it won't start at all and I have to close it with taskmanager to make it open next time (but still blank).

Does anyone have the idea what's going on?

Thank you.

Using Windows 11 and want to set Gmail as my mailto option when clicking on email links on websites. Under Firefox/Settings/Mailto I no longer see the option for Gmail, not an expert on technical matters so I have googled the problem but still can't find a solution. Do I need to find an App on Windows or perhaps an Extension within Firefox, feeling completely lost at the moment.

Is there any way (as in Thunderbird, via layouts.css.devPixelsperPx) to enlarge everything on a given monitor/display/colorDepth setting? Or an approach using userChrome.css that impacts everything, not just displayed text in the browser. Yes, this is a "tired old eyes" (excessive nanoseconds spent looking at bigger and bigger displays with higher and higher resolution) type question. My setup is multiple boot OS including Windows 11, Ubuntu, Manjaro, Arch. In each Firefox is the default browser, but Chrome and Edge seem to have more fine-grained controls for managing the chrome display than Mozilla. Using the latest 64-bit Firefox (100.02) if that's helpful.