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hoangtranwork/open-firefox-maximized.md

Last active October 10, 2018 08:25
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Steps to make Firefox open maximized on macOS
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open-firefox-maximized.md

  1. Get the profile folder location in about:support page

  2. Edit the file xulstore.json found in the above folder. It's a json file and we need only to edit the key main-window to something like this:

"main-window":{"screenX":"0","screenY":"0","width":"1920","height":"1080","sizemode":"maximized"}

NOTE:

  • Step 2 should be done when Firefox is not open, as it seems that the file get updated when Firefox closes.
  • Sometimes you need to put negative value to screenX if the windows is still shifted abit from the screen edge.
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