641030 - Panel crops content after resizing

Status: NEW

(Core :: XUL, defect)

Description

[Heather Arthur [:harth]]

Someone reported that my addon's popup was cropping it's content on Firefox 4 betas.

STR:
1) Install Rainbow addon https://addons.mozilla.org/en-US/firefox/addon/rainbow-color-tools/.

2) Open Website Analyzer from Tools > Rainbow > Website Analyzer

3) See panel appear in bottom right corner of browser

4) See panel resize after computation and shrink to ~30px wide, cropping its content.

Regression range:
Last good nightly: 2010-07-27 First bad nightly: 2010-07-28

Pushlog: http://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=0ed73d56efd5&tochange=beab39d49de9

Comment 1

[Heather Arthur [:harth]]

I'm opening the popup with:
  panel.openPopup(document.getElementById("status-bar"), "before_end", 0, 0);

https://github.com/harthur/rainbow/blob/master/chrome/content/common.js#L209

Comment 2

[Heather Arthur [:harth]]

this is Linux only btw, so I think caused by either:

http://hg.mozilla.org/mozilla-central/rev/60fa04517a6f

or

http://hg.mozilla.org/mozilla-central/rev/8524b753b454

Comment 3

[Firefox Bug Husbandry Bot]

Moving to Core:XUL per https://bugzilla.mozilla.org/show_bug.cgi?id=1455336