Merge tag 86.0.4240.181 from bromite

85f83385 Release 86.0.4240.181
ed5a1533 Merge pull request #787 from uazo/fix-780
d360de85 fix toggling the new option alone does not affect the user agent
221c8a3e toggling the new option alone does not affect the user agent
9ed77fd7 fixed flag behavior and added new setting menu
6b238924 removed trailing whitespace
71f1163b added flags in homepage_preferences and site_settings_preferences.xml we need to choose.

Signed-off-by: Aayush Gupta <theimpulson@e.email>