Indeed, my description is not fully exact, because the bug seems to happen quite randomly, but repeatedly and often. I'd rather not make a video, but if needed, I can make one if you can suggest some free software for Linux to capture video/flash from screen navigation. Issue happenning on CentOS 6.2 x64 (Firefox 22, 23b4, 23debug), CentOS 6.4 x64 (Firefox 22, 25.0a1).
Created attachment 775445 [details] a simple XPI to test this The XPI contains index.XUL, similar to treeCellTest.xul that I've attached earlier, but treeCellTest.xul had a minor side bug in it.
The issue still exists in Firefox 23.0.1 and 24b07 for Linux x64. There was no comment or investigation done by Mozilla on this since I've created the ticket almost 2 months ago. Shame on Mozilla processes.
I get the same buggy/inconsistent/undocumented behaviour when using Firefox 24.0 on Fedora 19 KDE x64. Minor correct: if you use the attached XPI, then the url for the demonstration is chrome://setcelltext/content/index.xul
I get the same behaviour on - Mac OS X 10.6.8 (Intel, I believe x64), Firefox 24.0 - Windows 7 Pro, Service Pack 1, x64, Firefox 24.0 - however, here I've only seen the bad behaviour (exited text gets reverted back)
I've checked it with the current Nightly build http://ftp.mozilla.org/pub/mozilla.org/firefox/nightly/latest-trunk/ > firefox-26.0a1.en-US. I get the same behaviour. I've also checked on Fedora 19 KDE i686 (32bit) and I get the same behaviour. It's not x64-specific, so I'm changing Platform to All.
Hi Peter. Thanks for the report! Confirmed in FF 26.0a2 (2013-09-30) Win 7 x64 - the new value is discarded after reload.