I have read through both the MDN Gamepad API page and the W3C Gamepad API page, and I have found nothing about any rumble features with Gamepads. I found one page that referenced rumble support in FireFox with an android phone, but only had one comment that talked about gamepad support. That comment has 2 links: a dead blog, and a Bugzilla thread. The Bugzilla thread never ended up saying that this feature was added. I did find one more page that directly referenced the gamepad rumble control, but it was under the "The Future" section of the post.
The case may rumble on in appeals for several more years, but Mozilla will continue to advocate for an Internet which is open, accessible, private, and secure for all, and we will continue to build products which advance this vision. We hope that those with the power to improve browser choice for consumers will also work towards these tangible goals.
Video will not play with Firefox 87 on yahoo.com family of sites. Works fine with chrome on same computer and same OS. Videos work fine in Firefox from other sites like YouTube and rumble. Using latest updates of OpenSuse Tumbleweed which includes Firefox 87. Checked all video codecs and reinstalled Firefox with no add-ons to try to resolve.
Obvious and easily repeatable symptoms are playing a youtube video on Firefox. Audio will be turned off. If you go into settings and move the firefox audio slider to full it will only stay there for a brief period. If you pause the video, skip forward or start viewing a new video the audio setting will revert back to zero. Incredibly annoying.
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