Firefox Community Forum

FF is my default browser. My computer is a new iMac (M3) desktop. I have used FF for several years without incident, until today. It opened normally, and then the familiar update pop-up said an update was available and invited me to re-start the browser. That requires providing admin credentials to the "Install the 'Helper tool' " pop-up, which I have done every time without incident, until today. A follow-on pop-up then asked if I wanted to allow Firefox to access other apps and devices, which I had never seen before. I said "No", and that was the end of my FF browsing experience. Every time I try to start the FF browser, it wants me to try to install the Helper tool; I provide admin creds, it goes away (fails), and the browser never starts.

I have a lot of bookmarked URLs and other browser-related data that are extremely important, and I cannot afford to lose them. Used Safari & Google & Mozilla helped me learn the location of the FF "Profile" folder. Navigated there and copied/pasted it (ends in ".default-release") to my "Documents" folder as a back-up copy. Downloaded a new instance of FF from Mozilla download page. Didn't open. Went to download folder, clicked the .dmg file, which opened a small pop-up. Followed the instructions to hold down the CTRL key while clicking "Eject Firefox". Nothing productive happened (no new FF icon). The old icon in the dock still doesn't start the app.

Would it be useful at this point to un-install Firefox (in Applications) and then try again to download a new version? If so, I would need help on how to make the old Profile folder (the back-up copy) available to the new instance.

Thank you very much.

My Firefox program completely crashed and would not restart. I had error messages like " couldn't load XPCOM" and "entry point not found", and "awake time".

Reinstalled new Firefox version. At some point it asked for a new password and I put in a new password.

Then it asked for encryption key. I entered it and it said invalid. Can I sign in with the old password and use the encryption key that I know is correct? Or change the password back to the prior password?

Otherwise how can I get to my profile to recover bookmarks and other info?

Please provide step by step instructions.

Thanks-- Peter M.

When importing logins and notes and URL from Chrome to Firefox, why the latter doesn't bring notes and read double URLs?

All of my notes are gone and if similar URLs are doubled.

Sharing one screenshot, since I cannot share another due to privacy (until a Mozilla dev team asks for it directly without sharing it on public platform).

This is the error message I get when I try to connect to different sites:

Secure Connection Failed

An error occurred during a connection to accounts.firefox.com. PR_END_OF_FILE_ERROR

Error code: PR_END_OF_FILE_ERROR

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

Learn more…

I signed in to be sure to save my bookmarks and i lost them instead. When i hit sync, i wanted to backup my current bookmarks. Instead, I lost them. It reverted to the old bookmarks i had a few weeks ago. I lost all of my bookmarks from the last few weeks. HELP!

Paypal hangs when transferred from vendor site to complete purchase. Relaunching Firefox in troubleshooting mode resolves issue. Also works with Safari. What's wrong, what needs to be changed?

I don't know where to add shortcuts all at once instead of adding each one individually, I tried to search for a "shortcut folder" within the bookmarks manager and i found nothing, is there anything I can do to move opera browser's speed dial bookmarks into firefox shortcut

I was attempting to pay with autofill in a shopping card and get a pop up from firefox to login first. I appreciate being protected but when I use the password for my firefox account it did not work. Confused

Bonsoir, Pas top en ce moment firefox entre Canal plus qui bug et bing qui se met et a chaque retrait reviens pouvez vous me dire comment le désactiver définitivement et me dire comment rébold textgler le problème de canal qui bug MErci

Hello Team, I am trying to install extensions to my Firefox on Macbook Pro M3.

Getting error in the subject

An unexpected error occurred during installation.

Extensions I have tried to install so far: AdBlock for Firefox by AdBlock uBlock Origin by Raymond Hill

Both are failing with the same error.

I have tried reinstalling Firefox, Private Window, nothing helped. It did work for me with Firefox on Macbook Intel

I have read and tried all the previous discussions on this and they are no help. I have Delete cookies and site data when Firefox is closed checked, and I have a list of exceptions. I also have Clear history when Firefox closes with Cookies and site data checked. When I close or Exit Firefox, and then restart it, all the cookies that were there before are still there. If I Delete All Cookies, then it deletes my exceptions too. If I'm doing something wrong, then you are making it way too hard to do.

When Firefox opens it opens 2 additional tabs. I have not changed anything in settins. Syarted happening a few weeks ago. How can i prevent Firefox from opening2 extra tabs?