495179 - Location bar appears empty if certain Unicode in URL

Status: RESOLVED DUPLICATE of bug 453827

(Firefox :: Address Bar, defect)

Description

[Corrie Sloot]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.0.10) Gecko/2009042316 Firefox/3.0.10

The location bar appears empty if a URL contains certain Unicode characters which have a higher line-height than other characters.  The URL is still in the location bar, and can be highlighted, but is pushed down, below the visible area.

This also occurs in pop-up windows, essentially hiding the true page the user is on.  This could be used in phishing schemes.

Reproducible: Always

Steps to Reproduce:
1. Enter URL with special characters in URL, eg. %E2%9F%B5
2. Hit enter

Actual Results:  
Location bar does not show URL.

Expected Results:  
Location bar should always show URL.

Firefox should either not allow such characters in the location bar, or display them differently.

Comment 1

[Daniel Veditz [:dveditz]]

Why the heck does "long leftward arrow" need such extreme height in windows fonts? The glyph itself is pretty short.