web-bugs VS uMatrix-issues

The thread is very long, here is the relevant comment:

https://github.com/webcompat/web-bugs/issues/131916#issuecom...

https://github.com/webcompat/web-bugs/issues?q=is%3Aopen+is%...

Microsoft Teams (which I don't think many people use voluntarily) in particular breaks in stupid ways - and then in others if you spoof your user agent.

a link to the video would help with troubleshooting, seems like another case of "this site or this particular feature doesn't support firefox" otherwise report to https://webcompat.com/

Have any of you faced this? If the website is made to open only in chromium-based browsers, I am planning to report to Webcompat. But before that, I thought I would make sure from others. Any experience or quick fix would be appreciated.

Teams was a classic hellhole for me when I was using Linux. Nowadays it lets you in but Firefox genuinely doesn't support all of the features the Teams site uses. This means certain features are made unavailable to Firefox users. Forcing the user agent makes some of these partially work but they are also still broken so Mozilla doesn't want to enable a user agent override by default and Microsoft doesn't want to enable a feature that only half works.

This GitHub WebCompat issue serves as a good example history https://github.com/webcompat/web-bugs/issues/77892

https://github.com/webcompat/web-bugs/issues/125920#issuecom...

having recently looked at a firefox performance regression for filing a bugreport, tooling that tracks performance (quite publicly) sees attention, easy upload to share tracing profiles also helps: https://firefox-source-docs.mozilla.org/testing/perfdocs/ind...

Their dedicated blog keeps you posted if firefox perf is your interest https://blog.mozilla.org/performance/

If you have a particular website you notice chromium being significantly faster with, for an easy report, there's https://webcompat.com/ - though bugzilla is better than it seems when coming from github issues

But keep it mind that it has been discontinued quite some time ago, so keep an eye on the issue-tracker for vulnerabilities.

Is it a good idea to be using uMatrix? I was under the impression that development on the project ended back in 2020, the code is archived and no longer actively maintained.

uMatrix gives you control over the requests that websites make to other websites. Many websites integrate features which let other websites track you, such as Facebook Like Buttons or Google Analytics. uMatrix allows 1st party scripts in its default configuration. If you want the default functionality of NoScript consider blocking 1st party scripts everywhere by default. This addon has been discontinued.

Raymond Hill has stopped developing uMatrix and also stopped accepting PRs because it's currently too much work for him [1]. So be aware that bugs will probably not be fixed.

1: https://github.com/uBlockOrigin/uMatrix-issues/issues/291#is...