Firefox Support Forum

bold textWhen I click onto Firefox, it opens a tab that says Invalid URL. If I click onto the + next to it, it opens up into the firefox browser. What can I do about the original tab??

I use windows 10 Pro as the main synching device to synch Firefox to my iPhone ver. 14 and ninth generation iPad. Neether the iPhone or iPad will synch. Seems like the changing of the guard in management has screwed things up that were working a few days ago.

Wishing to view my own html file in my Ubuntu Linux system I pressed the Alt key which I thought would give me a "File" menu. I could not see one. How do I get it?

MS Windows 11 just updated (02/14/24) and now Firefox keeps giving me the 'Firefox is already running, but is not responding. The old Firefox process must be closed to open a new window.

 <Close Firefox>  <Cancel>.  Task Manager is showing three Firefox activities at the same time.  This problem is only on my Admin user account.   The two other local account run Firefox fine.  Any help, suggestions directions?

Using: PC W11 [v 10.0.22631 Build 22631] & Mozilla Firefox v122.0.1 (64-bit)

I am no tech expert.....I have not Idea of the problem..I have used these email programs for years with no problems for years. Any help would be greatfuly appriciated.

I don't know in which version exactly it happened but a few weeks earlier i was able to edit cookies like we can on all other browsers, but today suddenly i cannot.

I expected it to be a simple double-click and i can edit the cookie key name or value but it doesn't let me edit, it opens the detailed view about that cookie. I looked EVERYWHERE and could NOT find any way to edit the cookies for hours and this is really frustrating as a dev. This is important to troubleshoot many kinds of bugs when I am developing an app.

Hello, my mac ran out of battery. When I restared it, the firefox page restarted, but I can't see it. When I click on it in the app scrolling menu, nothing turns up. It's like it is there, but as a ghost, invisible. When I close down firefox, and restart, it's still exactly the same. I had hundreds of tabs open there, and I don't want to loose that session. When I open a new window, it works, but I can't make the prevous one appear. What is going on, what to do? I'm quite desperate about it, already spent hours looking for solutions.

I used to love Firefox. For years, Firefox has been my primary & exclusive browser. But, in the last 6 months or so, Firefox is CONSTANTLY & CONSISTENTLY freezing on me. Here is the guaranteed & predictable pattern: Everything is working well for an hour or so and then suddenly, for no rhyme or reason, the program freezes. I close the program (because it's not responding, so says the error message) and I immediately reopen Firefox and things are fine for another hour or two...and then it happens again & again & again & again!

It just happened again while I was in the middle of an important work project & I AM SICK OF IT. I loved Firefox so much, I have spent hours & hours, over many weeks and months, reading about the problem and trying ALL the recommended fixes--to no avail. NOTHING has worked. Don't ask if I tried this or that because the answer is yes, I tried it. And it is happening to me on multiple computers. (I use two computers simultaneously, a brand new Windows 11 and an older Windows 10 computer.) It's getting to the point that I am starting to use Chrome more and more because I can use Chrome (or any other browser such as Edge or Maxthon) without problem or incident. But old habits are hard to break and I keep returning to Firefox (being the fool I am) & because I have Firefox tweaked to my specifications especially with passwords, etc. I have very reluctantly and unhappily removed many add-ons thinking one of them might be the problem. But, as I said, nothing has worked. And yes, I have uninstalled and reinstalled the program, turned off hardware acceleration, did your registry tweaks, bla, bla, bla.

I am writing mainly to vent. Because I have tried ALL THE FIXES without success, I have no confidence that you can solve what appears to be a common problem. But, of course, if you think you can help me, give it a whirl. Otherwise, I need to dump Firefox for good. Thank you letting me share.

I was able to customize my new window to display www.google.com however I only have the option to select "Firefox" or "Blank" for new tabs. I would also like new tabs to open to www.google.com. How can I do this?

Po przeinstalowaniu systemu i wgraniu Mozilli mam problem z otwieraniem plików. Brakuje mi możliwości jak ze zdjęcia, które jest z instrukcji jak to robić. Przykładowo pliki .pdf zapisuj się i otwieraj od razu, wszystko fajnie. Ale już pliki .msg czy .eml nie chc otworzyć się automatycznie w Outlook'u i nie widzę nigdzie opcji zaznaczenia "zawsze otwieraj podobne pliki" czy jak to tam szło dokładnie. Bardzo proszę o pomoc gdyż bardzo mocno utrudnia to pracę i użytkowanie przegladarki.

"Verification of this link failed due to an error" when selecting a hyperlink. I then select "Skip verification" and the link is made.

This happens on all hyperlinks. Has been happening for at least 6 months.

How can I fix or prevent this message? Thank you.

Everytime I look up something and it has a map attached to it and I click on the map, I get Google Map or MapQuest and the map is there for 3 seconds and then it looks like the attached picture. So I open up maps in its own tab and type in the address and I get same results. But if I use either of them in edge, I have no problems. I only have Mate Translate on in add ons. So I have no idea what is going on. I reset cache as I had read that from a post (though their issue was similar but not the same) I would appreciate any and all help you can give me. TYIA

As of today every time I open a FF window it has a sidebar for history. I do not store history and need to stop this. I do not want to close it i want to disable this annoying new function or I need to delete FF and choose a different browser.

Just today (2-13-24) I discovered that certain functions of Outlook (web based) do not work in Firefox. All functions do work in Edge browser. Windows 10, Home version. I can read my emails but cannot delete them. I also cannot delete Junk Email and probably others, but I've not attempted others. When I try to delete Junk emails, it seems that they are deleted, as they disappear temporarily from the folder, only to reappear after leaving the Junk folder and returning to it.

Looking for possible solutions.