Firefox Community Forum

”Using my HP Notebook computer, BOOKMARKS (in Mozilla/Firefox): Who governs my access to my list, which disappeared on 2/20/2026. It looks like Google (i.e., Yahoo) has taken control of this function……….and, if I set up Sync on my computer, how will my current DEFAULT YAHOO EMAIL be impacted?”

Almost every time I open up Firefox it has a little pop-up under the tool bar asking "Open Firefox every time you restart your computer?", and every time I select "Not now", which I guess is intended as only a temporary answer. How can I permanently say "No" and keep this from popping up constantly?

I had to remove the Recommended stories from the home page. every source was a left leaning outlet. How is someone supposed to get a balanced news snapshot if all the sources have the same biased tilt?

Hi Team,

I’m currently conducting a DevOps training session and we are using Firefox to inspect headers for a web app running inside a local Docker container (localhost:8080).

We've noticed that occasionally the 'Network' tab in DevTools fails to show the full response headers for our nginx proxy, even after clearing the cache. It works fine in other browsers, but I prefer using Firefox for our students because of the superior CSS Grid and Flexbox tools.

Is there a specific setting in about:config that might be limiting the capture of headers for local loopback addresses?

Thanks for the help!

Firefox stopped working properly this morning. whenever i try and open a new tab firefox tries to get me to setup sync instead of going to the new website. I turned off sync. I do not want to sync with anything at this time. How can i get firefox to work again?

Mozilla made an update of my Firefox installation on my Win11 laptop. all my password disappeared as well as my history and bookmarks.

I have now a virgin installation and is starting from scratch.

Now I get this error message: "This profile was last used with a newer version of this application. Please create a new profile." I deleted met shortcut and I opened Firefox by using Windows search. Now I see 4 profiles! I think I do not need to create a new profile. Maybe delete 3 of them ? What to do ? And, how?

Hello, When I went to launch Firefox after starting up my PC this morning, I was greeted with: "Your Firefox profile cannot be loaded. It may be missing or inaccessible".

I went right to the Mozilla forums and found the help page [https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing...] . In this article it detailed how I should go into my AppData, then Mozilla, then Firefox, and look to see where my profile.ini file is. My profile.ini file was there, alongside the installs.ini and a few other folders. I attempted also to launch the profile manager using run and the "firefox.exe -P" command, but I got the same profile error as when I tried launching the app. The help page then recommended deleting the profile.ini file and then launching Firefox to hopefully remake the default profiles.ini file and enable me to launch Firefox, so I attempted that. When I tried relaunching Firefox, the profiles.ini file did not re-appear in my Firefox folder.

I then tried deleting the Firefox folder itself, and relaunching Firefox. This resulted in it being remade, but with just 2 folders left: Crash Reports and Pending Pings. Obviously that's not ideal, so I right clicked the Firefox folder and used the Windows "Previous versions" feature to restore the Firefox folder to a backup of how it was this morning. I then re-tried launching and I still got the same missing profiles error message. I also briefly attempted manually making a new profiles.ini file with notepad, and pointing it towards my Profile withing my Profiles folder, but that still resulted in the same missing profiles error.

This is basically where I am at now. I have confirmed that I do in fact see my actual profile in my "C:\Users\****\AppData\Roaming\Mozilla\Firefox\Profiles" folder, and as far as I can tell my profiles.ini file correctly points towards it. I did another reset of my Firefox folder to a backup of where I was at this morning before attempting anything. I can confirm my Windows account (Admin, and only account on the computer) has full read and write access to all Folders and files within the Mozilla folder, although I will mention some of the files in the Firefox folder were marked with the "Read-Only" attribute (not sure if that matters, but I tried unchecking those and still no luck)

As far as I can tell I have thoroughly exhausted all the easily accessible tips on the internet for solving this, so I am wondering what to try next?

TLDR: Error: Your Firefox profile cannot be loaded. It may be missing or inaccessible" Already Attempted (And failed): -deleting and prompting a remake of the profiles.ini folder -using firefox.exe -P to launch Profile manager -deleting Firefox folder to prompt a remake of that -multiple uninstalls and reinstalls of Firefox -manually remaking profiles.ini file after it didn't come back after deletion

Will link images of (1) profiles.ini file. (2) Profiles folder.

When i try to connect to some websites, firefàx prompts "error 502 bad gateway" the same websites work on EDge !

Unable to connect

Firefox can't establish a connection to the server atxxxxxxxxx

Error code: 502 Bad Gateway

. The site could be temporarily unavailable or too busy. Try again in a few moments. . If you are unable to load any pages, check your computer's network connection. . If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.

Try Again

How can I tell Firefox to automatically set the volume to 2 or 3, and not play every video in every window full blast - which is maddening when I'm using Facebook and every video I click BLASTS! the sound WAY, WAY louder than any other devices I have outputting sound, such as Spotify music.

bold text Firefox has been my browser forever. When I tried to open it this morning I was invited to create a profile, so no profile, no Firefox..... I've never had to do this before and am reluctant because of the apparent threat of losing all my passwords and bookmarks. I'm 85 years of age so don't need this complication. Any help would be appreciated, complicated high tech answer will probably be beyond me. Brian.

Both the menu and the taskbar are not available since the latest update a few days ago. I've searched all options in Firefox settings with no luck in finding a solution. Help would be appreciated as this is extremely annoying and working around it wastes a whole lot of time.