1626040 - Determine if we should read from the about:home startup cache when restoring a previous session

Status: NEW

(Firefox :: New Tab Page, task, P3)

Description

[Mike Conley (:mconley) (:⚙️)]

The patch posted in bug 1621032 skips the about:home startup cache in the event that the user is configured to restore the last session by default. Gijs pointed out that even when this occurs, due to how the previous session is asynchronously read off of disk, it's possible that we'll still end up at least partially loading about:home while we wait for the session to be restored. If that's the case, it might be better to actually load from the cache, since it should mean less work to compute, which would free up cycles for restoring the last session when the state is finally done reading.

I filed this bug to evaluate that.

See the conversation at https://phabricator.services.mozilla.com/D66079#2085388 for further details.