Firefox Community Forum

I have recently purchased a new PC that is running on Windows 11. In the settings menu - downloads, I have set up Firefox to "always ask" when there is PDF document. I usually prefer to just view the document so I click on open the file using Firefox. When I do that, the PDF opens and is saved to my downloads at the same time. I do not have this problem with my other devices. Not sure what is going on. I tried the "open in Firefox" setting but I get the same result.

I'm having a problem with Firefox 160.0 on my Windows 10 desktop PC. I just updated today (November 10, 2026), and it immediately started happening.

When i hit Ctrl-B for the bookmarks menu option and then tap a key to go to my usual bookmarks, it will no longer launch the one I want with a quick keystroke. For instance, I hit Ctrl-B, then "K" to quickly open a bookmark that begins with the letter K. Instead, it now goes to another bookmark that simply has K in it somewhere, but does not start with this letter. It's frustrating. I'd appreciate any help. Thanks! :)

I’ve noticed something strange with the active profile in my Firefox Nightly, private browsing doesn’t seem to be working as expected. . Two things made me suspect something’s wrong

* I wanted to compare a site’s logged-in and logged-out views, so I opened it in a private window. However, it still showed me as logged in

• This led to a second finding: private windows render identically to normal windows, with no private-browsing indicators.

Tested with a fresh profile: private browsing behaves correctly, which isolates the issue to my active profile. I was wondering if any one has encounter this issue and whether there's a fix for it

I am running Win7 and only using Firefox 115.45.0 which I recently upgraded to from 115.44. For the last few weeks, I get an Ebay Error message when trying to search its site. At first, I could enter a search term, let it sit awhile and then click "search". If I got the error message [a kid w/ orange jacket over his head and a small message saying "something went wrong at our end" plus a long number (not always the same)], often highlighting the URL, holding the Enter button down a while, then releasing it would allow the search to be fulfilled. That no longer works. Over a week ago I contacted a Customer Service agent who said she would contact their Technical people, but the situation seems now worse, and I haven't been contacted. I have had no trouble with my account pages & features. Does anyone else have this problem and does anyone have suggestions about mine? Yes, I have cleared cookies and cache ( including when I updated Firefox ESR today). Can't think of anything else new on my system. FWIW, I can't/won't upgrade this old OS for various reasons. I also can't try other browsers. I don't visit lots of places, (no "social" media) and no others where I do any searching as on Ebay; it is the only site with problems.

I had 1600 tabs open (foolish, I know, but 16GB RAM and have had no problem with it in the past) when the app suddenly stopped responding.

Restarted the app, all tabs were gone, replaced by my starting page. Very strange, as I have the setting to re-open previous tabs per default. Attempted to open via "recently closed windows", saw all of the tabs, but the content never loaded in - I was able to resize the window, but could not add new tabs or close existing ones with either mouse input or keyboard shortcuts.

The app became unresponsive again. Restarted the app, did the same thing, had the same issue. This time, it caused the entire computer to become unresponsive. When I started the computer again, opened FF, it was on the start page, and the option of "recently closed windows" was suddenly greyed out.

Following the online guides, it takes me to C:\Users\Username\AppData\Roaming\Mozilla\Firefox\Profiles but there are very few json files in there and only from a few minutes ago. There is nothing in there from before the crashes

There are no Windows previous versions to restore from

1. Is there any way to recover the tabs that I have missed? 2. Why is information about tabs not stored in a non-replacing way locally? 3. Why is information about tabs not stored on the account in a better way? I am far from the only person who uses tabs as a form of storage, even if it is not optimal

I have Firefox on my Android phone, and I am signed in.

When I install Firefox on my PC, it provides me with a ready to scan image, but I have no "sign in" feature on my phone's Firefox.

My firefox push notifications won't stop popping up on my screen, I attempted clicking to disable notifications and won't stop. Keeps saying WARNING! via (bunch of letters and numbers) click here to secure your device. At this point I know it is a way to infect my computer when I just followed a secured link for school in my email and got caught somehow in a web. Hopefully this makes sense, my initial thought to troubleshoot is to uninstall and reinstall Mozilla Firefox?

Pretty much as the title says - for the last week or so, every time I try to google anything on Firefox, the results turn up completely empty as if the page hasn't loaded properly, or if I'm lucky, will only load a side preview from Wikipedia, and I have to figure out how to manipulate the browser links into something that will give me actual results. Nothing I've tried seems to fix it. Is there something I'm missing?

Automatically signs out of Xfinity or page refreshes when I switch tabs. Every. Time. I have tried all suggested fixes -clearing cookies, and site data, turning off enhanced tracking, quitting Firefox and re opening, restarting computer and several other things. This just started very recently, very annoying!

trying to install an add-on by file and I have turned off the signature thing, I also reinstalled firefox but the same issue keeps happening. it was able to install correctly on the zen browser which I think is built on firefox but idk.