Форум спільноти Firefox

This has been an issue that I've been having for the past month and have been unable to find a proper fix to it.

While Firefox opens normally, none of the previous windows show up on screen. Even though I can still technically interact such as opening new tabs in it and click through tabs with Firefox View. Once I try to pull them up none of them show on the monitor nor can be interacted with further. I have both uninstall and reinstall Firefox and deleted/rename the xulstore.json, but neither of them fix the problem The only temporary solution I've found is through refreshing Firefox through about:support, even then it only takes a couple days to suddenly have the problem come back all over again.

For added info I'm using a 2019 iMac with 15.2 OS.

Recently I have been unable to go to websites where I have had accounts for years. I can no longer access sites like Chewy, Etsy, and even Pinterst. On the latest failure to sign in to Etsy the message I got is "Please enable JS and disable any ad blocker" I don't want to learn another browser. Please understand I'm a senior so not as savy as you young folks. My Firefox browser is 140.0 so it is up to date

Yesterday, I had Firefox open and running perfectly fine, and I had forgotten to shut down my laptop before closing it. Today, when I reopened my laptop, the Firefox window that was open instantly closed. I tried opening Firefox again, but it kept opening and closing immediately. It would show that there was an open window of it, but the window itself wouldn't open. It would run in the background but never actually open. I tried uninstalling and reinstalling, but it still did the same thing. Does anyone know a solution to this?

Ive uninstalled it multiple times, done just about everything suggested online, and even got it working for a bit off the Microsoft store. But for some reason, my desktop Firefox will not open at all.

Today, I signed on to use my laptop, as usual, nothing different about how I sat down or anything, and I try to open Firefox and it flashes something on the screen, but I don't catch it as it immediately closes as well. It looked like a popup with a button, if that helps. I then try to open it again, realizing that I've got that bug, the one that causes browsers to open for a split-second and then close immediately, so I try to fix it how I fixed Opera GX before I stopped using that. Restarting? Nothing. Looking online for answers? Found some! I try starting it in Troubleshoot Mode, I can see down in my taskbar that Firefox is trying to open in Troubleshoot Mode but isn't. Okay, let's try something else, the Profile Manager. I use the Windows+R key to open the Run window and type in firefox.exe -p which according to a couple of websites, -This one included- should have opened the profile manager in a popup, but all I get is a flash of a window and nothing else. Then, I finally try uninstalling and reinstalling the app, upon reinstallation it asks if I want to keep my settings and whatnot, I say yes, problem persists. I uninstall and reinstall again, only this time declining the ability to keep my settings, the problem persists.

I'm extremely confused as to why nothing is working, and I don't want to have to reinstall Windows itself like I saw a comment on Reddit recommend, so if anybody has a slight idea of a solution, I'd be grateful, thank you in advance.

Edit: Just tried downloading and running Chrome, it worked for a second until it randomly closed, I know this isn't the support site for that browser, but I thought I'd mention that the "Not opening, just falshing for a millisecond" isn't just a Firefox thing for me.

bold text I don't know what subject: Missing Profile?

Firefox says profile is missing. I found default profile under C:\Users\19pro\AppData\Roaming\Mozilla\Firefox\Profiles. How do I restore it to Firefox?

Thank you, Patricia Schmieg

The initial problem I was dealing with was FF kept directing me to Youtube every time I clicked on a NORMAL link in my google search. 🤷‍♀️ I tried several different links but same result....Youtube again!

This is where I went down the rabbit hole. 🙄 My first step was to get some help with my Firefox browser for this 'redirecting' issue. Under the help heading, "More Troubleshooting Information" I found "Give Firefox a Tune-Up using Refresh". Hmmm, maybe this will fix the issue?? I carefully read the following before proceeding....

"Start fresh to fix performance issues. This will remove your extensions and customizations. You WON'T LOSE ESSENTIAL INFORMATION LIKE BOOKMARKS AND PASSWORDS."

WRONG!!! MISLEADING!!! LIES LIES LIES!!! 😡😤😡

I lost almost ALL of my saved bookmarks except for TEN (the most recently used) that still remained after the refresh was completed! I literally lost over a hundred of them that I had accumulated while using Firefox for so many years!! 😲😣🤦‍♀️ 21 different folders, Home, Travel, Shopping, Banking etc, each containing 10-30 OR MORE bookmarks to sites I need to SAVE to be able to revisit later when needed. ALL GONE!!! 😡😤

I have been loyally using ONLY Firefox as my browser for 2 decades!! Now the only thing I can say about Firefox is a whole lot of curse words!!

WHY WOULD FIREFOX INCLUDE SUCH A #$@&! STATEMENT??? "You won't lose essential information like Bookmarks and Passwords"......YES YOU WILL!!!

This NEEDS TO BE REMOVED!!

Why not be an honest and reliable browser?? Include information that if you perform a refresh, you WILL lose these essentials but you might possibly be able to recover them from hidden files somewhere, but you won't easily know where to find them!! 😉

The next time I have ANY issues using Firefox I won't be 'refreshing' nothing at all!! I won't troubleshoot NOTHING!! I will just copy and save all of my bookmarks and SWITCH TO GOOGLE CHROME!! 👍

I recently noticed that some of my add-ons are not doing their jobs. I looked in about:addons and sure enough, they're disabled. I can flip the toggle to enable them, but if I refresh the page, their state is reverted. I have not found a way to actually enable them.

I pressed the restart button after a pending update then tried everything again without change.

I'm aware that some add-ons can be marked as potentially unsafe or incompatible with the current browser version. That's not the case here. Nothing in the UI indicates there's a problem. Many of the add-ons have the recommended trophy icon. I removed and reinstalled uBlock Origin and Dark Reader. That seemed to fix it for now.

How do I move an addon from the TOOLBAR into the PUZZLE PIECE list? I can get them OUT onto the Toolbar.

Also, the Customize Toolbar / overflow menu won't accept anything, the addon just pops back out when dragged from the Toolbar.

I have not been able to access my on line banking for three days now. I ran a diagnostic and everything was fine, no issues so why cant I connect to the banking server. Please help.

FF ver 140. just loaded and now all my sidebar bookmark fonts are black on black. How do I change the sidebar bookmark font back to white? When I disabled all Themes the white color came back, but enabling any theme and they the font turns black again.

Recently (Jun 2025) When Firefox closes, an empty taskbar icon for Firefox remains. When click on it, it does not bring up anything. Nothing in the Task Manager to suggest that a copy of Firefox is still running.

Suddenly NY Times links think I am a bot, or there is a java problem, or I am clicking too fast (huh?), and I am being blocked. This started around the same time as the last update. Help! Thanks.....