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Why have all the recent upgrades screwed-up typing ANYTHING in FF?

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For a couple of months now, I can't type more than a few characters on a FF page without the typing freezing until I leave FF, click within another program, then return to FF. This occurs in no other program or browser. I love FF's extensions, but I'm about to leave FF for good.

For a couple of months now, I can't type more than a few characters on a FF page without the typing freezing until I leave FF, click within another program, then return to FF. This occurs in no other program or browser. I love FF's extensions, but I'm about to leave FF for good.

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You can check for problems with the sessionstore.js file in the Firefox profile folder that store session data.

Deleting sessionstore.js will cause App Tabs and Tab Groups and open and closed (undo) tabs to get lost and you will have to recreate them (make a note or bookmark them if possible).