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A comment on Firefox 56: Last Stop Before Quantum. Parent comment

Re:Firefox 56: Last Stop Before Quantum by twobyfour on Friday October 06, 2017 @01:03PM (#15418349)
Unfortunately, a profile backwards-incompatibility was added in FF55, IIRC, so if you're already on 56 you can't downgrade to 52.
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Re:Firefox 56: Last Stop Before Quantum by moosingin3space on Friday October 06, 2017 @06:31PM (#15420947)
A forum thread[1] suggests it may be possible to use the profile refresh functionality to recover most of the profile. Only problem is that it does not preserve extensions or settings.

[1]: http://forums.mozillazine.org/viewtopic.php?f=38&t=3032457

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Re:Firefox 56: Last Stop Before Quantum by twobyfour on Friday October 06, 2017 @07:23PM (#15421185)
What does it preserve, then? (Bookmarks? That's the easy thing to restore. Transfer to another browser then transfer back.)
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Re:Firefox 56: Last Stop Before Quantum by moosingin3space on Friday October 06, 2017 @07:41PM (#15421280)
This link should clarify what is preserved by the refresh.

https://support.mozilla.org/en-US/kb/refresh-firefox-reset-a...

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Re:Firefox 56: Last Stop Before Quantum by jd3 on Friday October 06, 2017 @04:28PM (#15420172)
I believe this has something to do with moving favicons out of places.sqlite and into favicons.sqlite. This completely destroyed my favicons (thousands) SeaMonkey's Bookmark Manager (and search history going back years).
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Re:Firefox 56: Last Stop Before Quantum by andrewaylett on Saturday October 07, 2017 @03:11AM (#15422679)
If Firefox Sync can sync the important bits of your profile, that may be a sufficient solution to this problem?
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