Firefox start with nested window after update up to v.25.0
When I start Windows Firefox starts with nested window interface. If I close and run it again firefox starts fine.
Solution choisie
I was found the reason of this problem. Tab Mix Plus -> Enable Crash Recovery. Problem was solved by disabling this option.
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Try to disable hardware acceleration in Firefox.
- Tools > Options > Advanced > General > Browsing: "Use hardware acceleration when available"
- https://support.mozilla.org/kb/Troubleshooting+extensions+and+themes
You can also check for problems caused by a corrupted localstore.rdf file.
Solution choisie
I was found the reason of this problem. Tab Mix Plus -> Enable Crash Recovery. Problem was solved by disabling this option.