internal rss reader in firefox error

[Jozef Mlich]

Binary package hint: firefox

when i open any rss feed (for example http://rss.slashdot.org/Slashdot/slashdot ) i can see folowing error:

XML Parsing Error: syntax error
Location: jar:file:///usr/lib/firefox/chrome/browser.jar!/content/browser/feeds/subscribe.xhtml
Line Number 1, Column 1:rosummary);
^

ubuntu 7.10

$ uname -a
Linux dominion 2.6.22-14-generic #1 SMP Sun Oct 14 23:05:12 GMT 2007 i686 GNU/Linux

Firefox 2.0.0.10

$ echo $LANG
en_US.UTF-8

[Jozef Mlich (xmlich02)]

unfortunately i can't reproduce this bug anymor (after reboot has problem disappeared)

problem occured several times after update on firefox 2.0.0.10