Thanks Viktor. This reproduces with existing profiles but not new profiles (due to blocklist not downloaded yet?). Backout of bug 1747320 and new Nightlies scheduled.
Bug 1750188 Comment 2 Edit History
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Thanks Viktor. This reproduces with existing profiles but not new profiles (due to blocklist not downloaded yet?). Backout of bug 1747320 and new Nightlies scheduled. Edit: After ~5 it also reproduces in a new Nightly profile.