On Wed, Jan 06, 2021 at 11:57:18AM -0800, Doug Thayer wrote: > If you don't spend any time on Nightly in Windows 10, please feel free to > disregard this. > > tl;dr: we're sometimes creating the first window differently than usual, so > be on the lookout for breakages. > > On 2021-01-05, a change landed in Nightly which enabled the pre-XUL skeleton > UI [1]. This is a feature which allows us to create the first window and > populate it with a non-interactive placeholder UI before we load xul.dll. On > some systems, this can mean we can give visual indication of Firefox > launching as much as 15 seconds sooner than normal (loading xul.dll can take > a while). We're hoping this could be a big win for users who experience very > slow startups, and we also hope it will improve the overall snappiness of > startup even on fast systems.
What does the placeholder UI look like? _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform