This was supposed to be fixed in [Firefox Nightly](https://nightly.mozilla.org/), please test Nightly and report back results, if it still a problem we can reopen, thanks!
Bug 1768781 Comment 2 Edit History
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This is supposedly fixed in [Firefox Nightly](https://nightly.mozilla.org/), please test Nightly and report back results, if it still a problem we can reopen, thanks!