Recent answers to What is Firefox doing when it tries to connect to these addresses - detectportal.firefox.com, shavar.services.mozilla.com, secure.fanboy.co.nz ?https://support.mozilla.org/ar/questions/12515902019-02-27T20:44:55-08:00Thanks
2019-02-27T20:44:55-08:00grumpyoldguyhttps://support.mozilla.org/ar/questions/1251590#answer-1200886<p>Thanks
</p>detectportal.firefox.com is used to detect captive portals on public wifi networks to be able to red2019-02-27T18:15:07-08:00philipphttps://support.mozilla.org/ar/questions/1251590#answer-1200865<p><a href="http://detectportal.firefox.com" rel="nofollow">detectportal.firefox.com</a> is used to detect captive portals on public wifi networks to be able to redirect you to their logon screen, so you don't just get page loading errors in firefox (set <em>network.captive-portal-service.enabled</em> to false in about:config in order to disable that feature).
<a href="http://shavar.services.mozilla.com" rel="nofollow">shavar.services.mozilla.com</a> is used to update the list of trackers that are getting blocked when tracking protection is turned on.
<a href="http://secure.fanboy.co.nz" rel="nofollow">secure.fanboy.co.nz</a> will be used by your adblocking addon to update its filter lists.
</p><p>i would suspect that all of these connections only have a negligible impact on your normal browsing.
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