(In reply to Rob Wu [:robwu] from comment #1) > I cannot reproduce this issue - only one tab is opened/duplicated as expected. > > Are you able to reproduce this in a clean/default profile? If not, have you made any changes to Firefox (preferences or add-ons) that may cause this issue? I can reproduce on Nightly81.0a1(20200810213634) Windows10 with clean newly created profile.
Bug 1657992 Comment 2 Edit History
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(In reply to Rob Wu [:robwu] from comment #1) > I cannot reproduce this issue - only one tab is opened/duplicated as expected. > > Are you able to reproduce this in a clean/default profile? If not, have you made any changes to Firefox (preferences or add-ons) that may cause this issue? I can reproduce on Nightly81.0a1(20200810213634) Windows10 with clean newly created profile. screen capture: https://youtu.be/s4e9T1U3FkA