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Firefox 70.0.1 HOSTS file being ignored

Posted

Mac OS Catalina 10.15.1 In Preferences, DNS over HTTPS is Off. (I tried toggling that On then Off but nothing changed) In Privacy & Security I have Strict settings, though when Standard is selected the behaviour does not change.

I know that with DNS over HTTPS set to On that HOSTS is ignored. Not ideal but there you go. But with that Off Firefox did respect the HOSTS entries I have.

Something has changed?

How do I get Firefox to always use my HOSTS file before looking elsewhere?

Thank you

Mac OS Catalina 10.15.1 In Preferences, DNS over HTTPS is Off. (I tried toggling that On then Off but nothing changed) In Privacy & Security I have Strict settings, though when Standard is selected the behaviour does not change. I know that with DNS over HTTPS set to On that HOSTS is ignored. Not ideal but there you go. But with that Off Firefox did respect the HOSTS entries I have. Something has changed? How do I get Firefox to always use my HOSTS file before looking elsewhere? Thank you
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Additional System Details

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1Password Augmented Steam CanvasBlocker ClearURLS Decentraleyes DDG Privacy essentials Nano Defender Privacy Badger uBlock Origin uMatrix

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  • User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:70.0) Gecko/20100101 Firefox/70.0

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Dinushi Dhananjani
  • Top 25 Contributor
5 solutions 216 answers

I just show someone got same problem and he got solution,

https://support.mozilla.org/en-US/questions/1271614
I just show someone got same problem and he got solution, https://support.mozilla.org/en-US/questions/1271614
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Question owner

Thanks - I saw that when I searched but I cannot see the actual solution?

I just see "Okay, problem solved! "

Where is their solution?

Thanks

Thanks - I saw that when I searched but I cannot see the actual solution? I just see "Okay, problem solved! " Where is their solution? Thanks
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crankygoat
  • Top 25 Contributor
31 solutions 347 answers

There isn't a solution posted, the person seems to have figured it out themself and did not share.

Turning the feature off probably will not stop the issue immediately by itself. You may need to clear the browser cache, and also flush the local DNS cache. Apparently the terminal commands vary by version of OS X. https://duckduckgo.com/?q=flush+dns+cache+mac+os+x&t=lm&ia=web

There isn't a solution posted, the person seems to have figured it out themself and did not share. Turning the feature off probably will not stop the issue immediately by itself. You may need to clear the browser cache, and also flush the local DNS cache. Apparently the terminal commands vary by version of OS X. https://duckduckgo.com/?q=flush+dns+cache+mac+os+x&t=lm&ia=web
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Question owner

Thanks.

Catalina sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

Restart Firefox and it will still load twitter, facebook and instagram which are all comprehensively routed to 0.0.0.0. in my HOSTS file.

I have the same HOSTS file on my PC (Win 10) and use Firefox there. It does respect the HOSTS file.

So this is a mac only issue.

I'm going to have to use pi-hole.

Thanks anyway.

Thanks. Catalina sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder Restart Firefox and it will still load twitter, facebook and instagram which are all comprehensively routed to 0.0.0.0. in my HOSTS file. I have the same HOSTS file on my PC (Win 10) and use Firefox there. It does respect the HOSTS file. So this is a mac only issue. I'm going to have to use pi-hole. Thanks anyway.
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