Top web-bugs issues
jane.app - Firefox is unsupported browser
browser-firefox engine-gecko os-mac priority-normal severity-critical type-unsupported
jrmuizel·22 May 2020·6 Comments nextcloud.com - design is broken
Re-triaged browser-firefox browser-firefox-mobile engine-gecko priority-normal status-contact-success status-first-contact type-css-zoom
reinhart1010·6 May 2018·17 Comments 
lassediercks·16 Feb 2018·7 Comments 
gcp·3 Feb 2018·7 Comments directvnow.com - Unable to stream using Firefox browser
browser-firefox engine-gecko priority-normal severity-critical sitepatch-applied status-multiple-contacts
globau·30 Nov 2016·31 Comments www.formula1.com - video doesn't play
browser-firefox-mobile
bull500·17 May 2016·19 Comments orbis.stanford.edu - Looks like it works only in webkit/blink.
browser-firefox
danielfilho·9 Jul 2014·23 Comments www.amazon.fr - Amazon Cyber Robotics is not supported on Firefox browser
browser-firefox engine-gecko priority-important severity-critical status-first-contact type-unsupported
webcompat-bot·14 Nov 2020·2 Comments 
karlcow·19 Sep 2020·5 Comments
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imgur.com - see bug description
browser-firefox engine-gecko ml-needsdiagnosis-false priority-critical severity-critical status-contact-success status-first-contact type-cookie-sameSite
webcompat-bot·3 Jun 2020·13 Comments