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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Firefox can't load profile after update to version 57

  • 4 replies
  • 21 have this problem
  • 23 views
  • Last reply by kostek00

kostek00
kostek00
more options

Today after updating Firefox from version 56 to 57 I'm getting constantly message saying "Your Firefox profile cannot be loaded. It may be missing or inaccessible". It show's up few times when starting Firefox and everytime I open any page in new tab that includes add-on, history, etc. (openning only new tab doesn't show this message).

This is what I tried without success: -> Complete reinstalling with pc restart. -> https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles -> https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible -> Wiping out all mozilla folders from roaming, local and locallow and then creating new profile.

Today after updating Firefox from version 56 to 57 I'm getting constantly message saying "Your Firefox profile cannot be loaded. It may be missing or inaccessible". It show's up few times when starting Firefox and everytime I open any page in new tab that includes add-on, history, etc. (openning only new tab doesn't show this message). This is what I tried without success: -> Complete reinstalling with pc restart. -> https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles -> https://support.mozilla.org/en-US/kb/how-run-firefox-when-profile-missing-inaccessible -> Wiping out all mozilla folders from roaming, local and locallow and then creating new profile.

Chosen solution

hi, are you using an older program version/edition of kaspersky as https://bugzilla.mozilla.org/show_bug.cgi?id=1384327 sounds similar. they apparently have rectified the problem with fixes in their current version...

Read this answer in context 👍 2

All Replies (4)

philipp
philipp
  • Moderator
more options

Chosen Solution

hi, are you using an older program version/edition of kaspersky as https://bugzilla.mozilla.org/show_bug.cgi?id=1384327 sounds similar. they apparently have rectified the problem with fixes in their current version...

kostek00
kostek00 Question owner
more options

Yes, I do have Kaspersky Anti-Virus 17.0.0.611 and I know about this bug. But the problem is I had Firefox version 56 without any problems. After update to verion 57 I completly removed Firefox with Revo Uninstaller Pro and installed version 56 but bug still occured.

philipp
philipp
  • Moderator
more options

can you try switching to the 2018 version of their product line (afaik users are entitled to do that if the license is still ongoing)?

kostek00
kostek00 Question owner
more options

I can't do that because license expired long time ago. But I removed KAV and it was bug you linked to. Thanks.