August 2015
FIR - ABOUT:CONFIG - POPUP - How to disable popups in Firefox without add-ons? - Super User
(via). Go to: about:config. Set browser.link.open_newwindow.restriction=0 and dom.popup_allowed_events=''. It works beautifully!
January 2015
FIR - PRIVACY - How to block automatic connections that Firefox makes - gHacks Tech News
Mozilla has created a support page that lists all the connections that Firefox make without explicit permission of the user. As you can see, quite a few are listed there.
While some are enabled after user activity, for instance adding live bookmarks to the browser, others are enabled by default. This guide looks at the latter kind, explains what their use is, and how you can disable them if you do not require them.
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