Firefox fullscreen mode disable in Linux

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Firefox fullscreen mode disable in Linux

Sometimes firefox may become full-screen every time we switch to it. Using F11 disables full-screen only temporarily and any small change again makes browses full-screen. To stop this behavior use following steps:

1. Edit ~/.mozilla/firefox/<profile>/localstore.rdf
2. At all places replace sizemode="maximized" with sizemode="normal"
3. Restart firefox

Learned from https://support.mozilla.org/en-US/questions/958762

Better way is to unmaximize firefox to keep it in resizable mode. In resizable mode one can keep resized manually to largest possible size. In resizable mode the problem does not occurrs.

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