"Manage" tab: Ajax delete not working in Firefox

[Wieland]

After I upgraded from WP2.0 to 2.0.4 last night, I'm no longer able to delete comments, posts or categories using the Ajax interface on the "Manage" tab when using Firefox (1.5.0.6, both WinXP and Linux (FC5)). Clicking "Delete" does bring up the confirmation dialog, but after clicking "OK" nothing happens. IE7 (bèta 3, WinXP) and Opera (9.01, WinXP) work fine.
In Firefox, comments can still be deleted in "mass edit mode", posts can be deleted by clicking "edit post" and deleting them from there, but categories can now only be deleted from the database directly. I'm assuming this problem also occurs when deleting pages, but I haven't tried.

Firebug - a Firefox extension for debugging DOM and javascript - comes up with the following:

ajaxDel.myResponseElement has no properties	http://(myblogurl)/wp-admin/list-manipulation.js (line 33)
removeThisItem					http://(myblogurl)/wp-admin/list-manipulation.js (line 44)
anonymous					http://(myblogurl)/wp-admin/list-manipulation.js (line 35)
anonymous					http://(myblogurl)/wp-includes/js/tw-sack.js (line 114)

ajaxDel.myResponseElement has no properties	http://(myblogurl)/wp-admin/list-manipulation.js (line 34)
ajaxDel.myResponseElement has no properties	http://(myblogurl)/wp-admin/list-manipulation.js (line 44)

[Viper007Bond]

Works just fine here in FF2.0b1. I just deleted a post without a problem.

[wieland]

Confirming comment by Viper007Bond. FF2.01b doesn't seem to have this problem (tested on WinXP).

[edekel]

Issue exists in FF1.5.0.6 and WinXP.

[markjaquith]

Are you sure all the JS files were properly uploaded? If this were an issue for everyone, people would be breaking down the gates at the wp.org forums.

[Nazgul]

Tested it in FF1.5.0.7 on WinXP and it worked for me.

So it is either a FF 1.5.0.6 issue or a (firefox/wordpress) plugin issue.