User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:22.0) Gecko/20130226 Firefox/22.0 Build ID: 20130226031002 Steps to reproduce: When I try to send file by https://www.virustotal.com/pl/ the Button not work. Actual results: Button not work but about 3 cm left I can open my windows to send file . Expected results: I can have opportunity send file click on Button .

I can confirm the "dead button" with Firefox trunk and Firefox10ESR but it works as expected with IE9 and Safari. We need a more minimized testcase....

Firefox : not work Opera, IE9, Chrome: work as expected

Ah, so the width on the file input is not changing the clickable area? I think Mounir has patches that will fix that...

Right, but does clicking on the part of the red box to the right of the button work to bring up a filepicker in Firefox? What about other browsers?

(In reply to Boris Zbarsky (:bz) from comment #6) > Right, but does clicking on the part of the red box to the right of the > button work to bring up a filepicker in Firefox? What about other browsers? Firefox: No,filepicker does not pop up. Other Browser: Yes, filepicker pops up.

OK, good. Like I said, Mounir's file input rewrite should fix this...

(In reply to Boris Zbarsky (:bz) from comment #8) > OK, good. Like I said, Mounir's file input rewrite should fix this... Umm, The try server build of Bug 345195 Comment#68 does not fix the problem,Filepicker does not pop up even if I click right part of red rectangular . https://ftp.mozilla.org/pub/mozilla.org/firefox/try-builds/mlamouri@mozilla.com-b61257dc2541/

Huh. That's really odd...

I saw that bug but I thought I would try to fix that while fixing the "stylability" of <input type='file'>. We seem to fully ignore the width for the moment. My plan was to look at that after landing the changes for <input type='file'> but they are being blocked by an a11y bug :(

The reporter found another site where an upload button doesn't work — at all: bug 855736.

This should be fixed by the patch in bug 52500.