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had firefox want to do an update, updated lost all bookmarks then randomly it unstalled and back to the pre-updated version

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the other day, firefox updated itself , i lost all my bookmarks autologins etc, them randomly today its gone back to the pre-update version? i dont know whats going on? the version on my computer currently is 27.0

the other day, firefox updated itself , i lost all my bookmarks autologins etc, them randomly today its gone back to the pre-update version? i dont know whats going on? the version on my computer currently is 27.0

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This is not an issue that Firefox itself is going to cause. Maybe it is your backup software or something.

Firefox has no mechanism for causing reverts to older installs. When Firefox does upgrade it does try to preserve bookmarks. I note from your Sytem information aside that you have McAfee software, but I do not know whether that may be implicated in this sort of problem.

I do know; certainly in the past; some McAfee software, and particularly the SiteAdvisor have caused Firefox problems.

N.B. Firefox has its own built in features

I could try to give some basic help information regarding Windows features for recovering previous versions of files

I suspect however your problem may relate to use of third party backup or security software.

  • What security related software and backup software is in use ?
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Which security software (firewall, anti-virus) do you have?

Is there really an older Firefox version shown in "Help > About" or did you only lose personal data (settings)?


Problems with bookmarks and history not working properly can be caused by a corrupted places.sqlite database file.

You can check for problems with the places.sqlite database file in the Firefox profile folder.

See also: