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Firefox Developer 62.0b1 not opening to last window size on Windows 10 or Linux Mint 18.3

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Hi, for a few weeks now Firefox Developer does not re-open in its last window size. Instead it opens to a smaller rectangle about one third of my 1920x1200 screen. It's not serious but something is obviously wrong and it would be nice to have it working like Chrome and Opera.

Hi, for a few weeks now Firefox Developer does not re-open in its last window size. Instead it opens to a smaller rectangle about one third of my 1920x1200 screen. It's not serious but something is obviously wrong and it would be nice to have it working like Chrome and Opera.

All Replies (4)

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If your not bug fixing or testing beta isn't to be used as daily Browser.

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Hi, yes it would, but am deflecting the above as do not know and am off.

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WestEnd said

If your not bug fixing or testing beta isn't to be used as daily Browser.

Thanks for the reply. I have just installed the latest stable Firefox but unfortunately it still has the same problem as the developer. Firefox still opens to a smaller size than the way I left it.

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Try to rename/remove xulstore.json and if present delete localstore.rdf in the Firefox profile folder with Firefox closed.

You can use the button on the "Help -> Troubleshooting Information" (about:support) page to go to the current Firefox profile folder or use the about:profiles page.