Building for macos now requires at least macos 10.12 SDK

Hi, Automation was recently updated to use the 10.12 SDK, because it turns out it had been a while we haven't supported running Firefox on macos 10.11 and earlier (support dropped in bug 1634765, SDK updated in bug 1680152). As usual in those cases, but quicker than usual, something else landed t

Intent to unship: HTML element and the context menu feature

It was removed from the HTML spec in 2017 because of the lack of implementer interest (https://github.com/whatwg/html/pull/2742). There is no other browser that implements this feature. Items to be removed: * `` * The `type` attribute of `` * The `onshow` event handler * The `contextMenu` attri

Soft code freeze for Firefox 85 starts December 10

Hi all, With Firefox 84 RC week upon us, we are nearing the end of the Nightly 85 cycle. In order to avoid invalidating the testing we get out of late Nightly and to ensure that we can roll out Beta 84 to a wider audience with confidence, we'd like to ask that any risky changes be avoided from Th