In 57 nightly (aug 3) on mac -- the tab title text on the active tab seems to sometimes be bold and sometimes in regular weight. It (sometimes) flickers between those states when I move my cursor over the tab bar and on and off the Firefox window. It doesn't seem to do this for all tab titles. Of the set I have open now, it only happens when the title text overflows -- i.e. not when the title is short and fits completely -- but this might be coincidence.
I suspect this is a dupe of bug 1386643. Feel free to re-open if I'm wrong.
Status: NEW → RESOLVED
Last Resolved: 8 months ago
Resolution: --- → DUPLICATE
Duplicate of bug: 1386643
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