Recent answers to Firefox autostart - after reinstalling it launches twice at a time...https://support.mozilla.org/en-US/questions/12322502018-09-04T21:05:04-07:00See also:
https://support.mozilla.org/en-US/kb/firefox-starts-automatically-when-i-restart-window
/2018-09-04T21:05:04-07:00cor-elhttps://support.mozilla.org/en-US/questions/1232250#answer-1149927<p>See also:
</p>
<ul><li><a href="https://support.mozilla.org/en-US/kb/firefox-starts-automatically-when-i-restart-window" rel="nofollow">https://support.mozilla.org/en-US/kb/firefox-starts-automatically-when-i-restart-window</a>
</li><li><a href="/forums/contributors/713113" rel="nofollow">/forums/contributors/713113</a> Pushed out to 10% release users - Firefox starts automatically when I restart Windows | SUMO community discussions
</li></ul>Hi, ya can be a pain. Have you checked the Start Button and the Start-up folder there ?
Also ca2018-09-04T17:54:12-07:00Pkshadowhttps://support.mozilla.org/en-US/questions/1232250#answer-1149882<p>Hi, ya can be a pain. Have you checked the Start Button and the Start-up folder there&nbsp;?
</p><p>Also can check Settings --&gt; Apps__&gt;Default Apps and see if Firefox is set to open something there.
</p><p>Note&nbsp;: Firefox 62.0 release tomorrow.
Can do a clean reinstall if so wish&nbsp;:
uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files , C:\Program Files(x86) &amp; C:\ProgramData
Then restart system. Then run Windows Disk Cleanup. (Note: This should be Pinned and run Weekly, If never done below expect 10's of gig's)
Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. But you should make a back up before you do&nbsp;:
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<ul><li><a href="https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles" rel="nofollow">https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles</a>
</li><li><a href="https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer" rel="nofollow">https://support.mozilla.org/en-US/kb/export-firefox-bookmarks-to-backup-or-transfer</a>
</li></ul>
<p>Reinstall with Current Release Firefox 62.0.0 with a Full Version Installer
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<ul><li><a href="https://www.mozilla.org/firefox/all/" rel="nofollow">https://www.mozilla.org/firefox/all/</a> Wait till is up.
</li><li>Help --&gt; About; to update
</li><li> Select Version &amp; language now&nbsp;:
</li></ul>
<p><a href="https://archive.mozilla.org/pub/firefox/releases/62.0/" rel="nofollow">https://archive.mozilla.org/pub/firefox/releases/62.0/</a>
Please let us know if this solved your issue or if need further assistance.
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