Heads up: "Firefox 100" webcompat experiment

[Chris Peterson]

I will be launching a "Firefox 100" webcompat experiment on Nightly this
week to test whether sites break when they see a User-Agent string with
a three-digit Firefox version number. Nightly will hit version 100 in
March 2022. Chrome will hit version 100 about a month before Firefox.

50% of Nightly users will get a "Firefox 100" UA string for four weeks.
I've been browsing with a "Firefox 100" UA string for four months and
only found one broken site: Slack's emoji button was broken, but has
been fixed: https://github.com/webcompat/web-bugs/issues/67866

If you find a broken site, please file a webcompat bug on
https://webcompat.com/


chris

[AJ Jordan]

Is there a way to disable this experiment in case of bad site breakage?

Also CC'ing nightly-testers as an FYI.

Cheers,

AJ

[Andrei Oprea]

Hey,

Experiments you are enrolled in are listed on about:studies where you can also unenroll. Btw once you do that you can’t go back.

Thanks,

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[Chris Peterson]

I launched a "Firefox 100" webcompat experiment on Nightly today to test

whether sites break when they see a User-Agent string with a three-digit
Firefox version number. Nightly will hit version 100 in March 2022.
Chrome will hit version 100 about a month before Firefox.

50% of Nightly users will get a "Firefox 100" UA string for four weeks.
I've been browsing with a "Firefox 100" UA string for four months and
only found one broken site: Slack's emoji button was broken, but has
been fixed: https://github.com/webcompat/web-bugs/issues/67866

I ran a similar "Firefox 100" experiment in August, but the results were
meaningless because a bug in my experiment code caused Firefox to forget
the version 100 User-Agent string after restart. Thanks to Dennis
Schubert for finding and fixing my bug!

If you find a broken site, please file a webcompat bug on
https://webcompat.com/

https://experimenter.services.mozilla.com/nimbus/firefox-100-user-agent-nightly-95-96

chris