This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

I have used Firefox for years. Today I tried and somehow failed to update or upgrade Firefox. Now I cannot access Firefox in any way.

  • 9 replies
  • 1 has this problem
  • 16 views
  • Last reply by FredMcD

more options

Firefox will not open. What I get is a message that says: "Profile missing: Your Firefox profile cannot be loaded. It may be missing or inaccessible." Please help. I would prefer to continue using Firefox instead of switching to Chrome.

Firefox will not open. What I get is a message that says: "Profile missing: Your Firefox profile cannot be loaded. It may be missing or inaccessible." Please help. I would prefer to continue using Firefox instead of switching to Chrome.

Chosen solution

thanks for your help. I figured out how to get the bar back. I may be good to go now. I will not click on any Firefox update buttons again.

Read this answer in context 👍 0

All Replies (9)

more options

So how did you firefox update? And what version are you now 32bit or 64bit and what was the previous version?

more options
more options

I did not update Firefox. I attempted to update and Firefox crashed. Now I have no access to firefox and no way to fix my mess that I can figure out. Thus my initial question. I now have no version of firefox. I'm pretty sure I was using 32 bit when the program crashed. I've been using firefox for over 20 years and now I'm cut off.

more options

FredMc D.: none of the four links you sent does any good. I'm currently not able to follow any of them. My computer is not responding in a way that makes sense when I try to follow those links.

more options

I'm going to once again attempt to delete Firefox entirely. Then I will wait a day before attempting to reinstall. When I have deleted and waited just a few minutes to reinstall, I get the same message about my profile is missing or inaccessible.

I don't know why or how the update I clicked was corrupted. If Firefox is this much trouble and untrustworthy I may be forced to give it up.

more options

DDSDDSDDS69 said

My computer is not responding in a way that makes sense when I try to follow those links.

You may have ad/mal-ware. Further information can be found in this article; https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware?cache=no

Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.

more options

I just went to a non Firefox help site on line and quickly got Firefox back up and running.

However, I'm now missing the pull down tabs along the top of the screen that I once used for bookmarks, editing, printing, etc. I can't figure out how to reestablish those pull down tabs. Any ideas w/ that problem?

more options

Chosen Solution

thanks for your help. I figured out how to get the bar back. I may be good to go now. I will not click on any Firefox update buttons again.

more options

That was very good work. Well done. Please flag your last post as Solved Problem so others will know.