1721096 - Tab oversized when website title includes special characters

Status: RESOLVED DUPLICATE of bug 1704404

(Firefox :: Untriaged, defect)

Description

[holgermogensen]

Attachment: Tab too big.png

User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0

Steps to reproduce:

I visited a website whose title included certain unicode characters, whose height were unusually large. As an example I found it to happen with the 'Mathematical Bold Fraktur' characters (starting at U+1D56C).

Actual results:

All tabs and the title bar grew to be unnaturally tall. A screenshot of this is attached, which was captured on a browser with 'Layout' set to 'Normal'.

Expected results:

As a user I expect the height of the tabs to be static and never change. As these particular characters seem to have a alot of empty space above and below them, I would expect that to be cut off.