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Firefox crashing on shutdown

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Firefox almost always crashes on closing. If I reopen firefox within a couple mins of closing it tells me it can't open because it is already running. If I leave it closed usually after several mins I get a notification that it has crashed. I've tried disabling all add ons/refresh/disabling sync etc. with no luck so just trying to see if anyone has any ideas on possible culprits. This is on multiple Win 10 machines, can post more crash reports later tonight. My other system it happens every single time I close it.

bp-a4bda36f-0ac5-4c10-90ee-170c90190822 bp-7fecd1bd-e6f0-46cf-acc8-f2ec10190822

Firefox almost always crashes on closing. If I reopen firefox within a couple mins of closing it tells me it can't open because it is already running. If I leave it closed usually after several mins I get a notification that it has crashed. I've tried disabling all add ons/refresh/disabling sync etc. with no luck so just trying to see if anyone has any ideas on possible culprits. This is on multiple Win 10 machines, can post more crash reports later tonight. My other system it happens every single time I close it. bp-a4bda36f-0ac5-4c10-90ee-170c90190822 bp-7fecd1bd-e6f0-46cf-acc8-f2ec10190822
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  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:69.0) Gecko/20100101 Firefox/69.0

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philipp
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5306 solutions 23424 answers

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hi david, are you using firefox sync? also, please open about:support once and hit the "verify integrity" button in the places database section once - what's the output there?

hi david, are you using firefox sync? also, please open about:support once and hit the "verify integrity" button in the ''places database'' section once - what's the output there?
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Yes, using sync, likely why it's happening across machines. Even when I stop syncing the problem files have probably already synced. On this machine I had an exception on a favicons.sqlite file. I'll check on my more problematic browser later tonight too and paste the results, but removing that file has cleared up the issue on this machine so far and integrity check is clean on here now. Thanks!

Yes, using sync, likely why it's happening across machines. Even when I stop syncing the problem files have probably already synced. On this machine I had an exception on a favicons.sqlite file. I'll check on my more problematic browser later tonight too and paste the results, but removing that file has cleared up the issue on this machine so far and integrity check is clean on here now. Thanks!
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