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How can I make Firefox window smaller than my screen as a default when I open Firefox

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Right now, when I open Firefox on my Mac it takes up the whole screen -- Toggling between Full screen and the "normal" default size o Firefox makes a negligible difference -- it still takes up my whole screen, hiding all of the other work I have going on. This is extremely annoying and substantially, negatively, impacts my productivity. Do I have to grab the bottom right corner of the Firefox window with the mouse and resize the window manually *every single time I open Firefox*?!!! How can I make the default window that is opened as small as I like?

Right now, when I open Firefox on my Mac it takes up the whole screen -- Toggling between Full screen and the "normal" default size o Firefox makes a negligible difference -- it still takes up my whole screen, hiding all of the other work I have going on. This is extremely annoying and substantially, negatively, impacts my productivity. Do I have to grab the bottom right corner of the Firefox window with the mouse and resize the window manually *every single time I open Firefox*?!!! How can I make the default window that is opened as small as I like?

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Separate Security Issue: Update your Flash Player Note: Windows users should download the ActiveX for Internet Explorer. and the plugin for Plugin-based browsers (like Firefox).

Note: Windows 8 and Windows 10 have built-in flash players and Adobe will cause a conflict. Install the plugin only. Not the ActiveX.

Flash Player Version: 25.0.0.171

https://get.adobe.com/flashplayer/ Direct link scans current system and browser Note: Other software is offered in the download. <Windows Only>

https://get.adobe.com/flashplayer/otherversions/ Step 1: Select Operating System Step 2: Select A Version (Firefox, Win IE . . . .) Note: Other software is offered in the download. <Windows Only> +++++++++++++++++++ See if there are updates for your graphics drivers https://support.mozilla.org/en-US/kb/upgrade-graphics-drivers-use-hardware-acceleration

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Firefox should remember the size and position of the last window to close.

https://support.mozilla.org/en-US/kb/changes-toolbars-and-window-sizes-are-not-saved You may have corrupt xulstore.json or Localstore.rdf file.

Close Firefox. Open your file browser to this hidden location:

  • Mac: *~/Library/Application Support/Firefox/Profiles
  • Linux: *~/.mozilla/firefox/Profiles
  • Windows: %AppData%\Mozilla\Firefox\Profiles
  • *C:\Users\<user>\AppData\Roaming\Mozilla\Firefox\Profiles

Search for the above files. Then rename or delete them. Restart Firefox.