If you’re a Google Chrome user you may have encountered a bug where the browser window gets stuck in full screen mode. In such cases, hitting F-11, or clicking the Exit Full Screen link does nothing.
After searching for fixes, many of which were ineffective, the only fix I found to work was deleting my user preference directory. If you’re a Linux user, here’s how:
First, go to the google-chrome directory in your home path:
Next, verify you have a Default directory. Rename it as a backup resource, just in case you need it.
mv Default/ Default_backup/
Then restart Chrome. You should see that a new Default directory is created. You should also notice Chrome starts normally and is no longer stuck in full screen. The only drawback here is that your preferences are trashed, but most will find that more than acceptable since Chrome is now usable again.