Bug 1772905 fixed the issue on Nightly (and probably on early beta). Now `typeof InstallTrigger` returns `"undefined"`. But when Firefox late beta/release reaches to 103, pixiv will break again. We should still ship the shim and test it with `extensions.InstallTrigger.enabled=true` and `extensions.InstallTrigger.enabled=false`.
Bug 1773873 Comment 12 Edit History
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Bug 1772905 fixed the issue on Nightly (and probably on early beta). Now `typeof InstallTrigger` returns `"undefined"`. But when Firefox late beta/release reaches to 103, pixiv will break again. We should still ship the shim and test it with `extensions.InstallTrigger.enabled=true` and `extensions.InstallTriggerImpl.enabled=false`.