Profile Reversion

[grumpfish]

Please provide a feature to revert back to a previous profile after it has been "upgraded" by allowing a new version to Firefox to be installed.

In a corporate area where machine images are restored overnight the version of Firefox is reverted.  Even having turned off all the automatic update features, an accidental click on the update button renders Firefox unusable from the next day because it won't start with a newer profile than the version running without creating a new one and losing all shortcuts & stored passwords, until such time as the corporate IT team update the image version.

[Jon]

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