STR: 1. Open a new tab 2. Load page A 3. Load page B 4. Go back so that the forward button is visible 5. Open RDM ER: The forward button remains visible while RDM opens. AR: The forward button disappears briefly and reappears again.
I'm marking this issue Verified Fixed since is no longer reproducible on Firefox 52 RC build. It was probably fixed along the way. Tests were performed under Mac OS X 10.11.6, Ubuntu 16.04x64, Windows 10x64
Status: NEW → RESOLVED
Last Resolved: a year ago
status-firefox52: --- → verified
Resolution: --- → FIXED
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