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How to Enable or Disable Automatically Reopen Firefox after Windows Restart or Shutdown

If you leave Firefox open when Windows shuts down or restarts, Firefox may automatically re-open with your previously opened tabs the next time you start Windows.

This tutorial will show you how to enable or disable Firefox automatically reopening after a shutdown or restart for your account in Windows 7, Windows 8, and Windows 10.

Here's How:

1. Open Firefox.

2. Type about:config into the address bar, press Enter, and click/tap on the I accept the risk button. (see screenshot below)

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3. Copy and paste toolkit.winRegisterApplicationRestart into the search box, and press Enter. (see screenshots below step 4)

4. Double click/tap on the toolkit.winRegisterApplicationRestart setting to change its value to true (enable) or false (disable - default) for what you want. (see screenshots below)

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5. You can now close this about:config tab if you like.

That's it,