A security issue affects the following Ubuntu releases:
Ubuntu 5.04 (Hoary Hedgehog)
The following packages are affected:
The problem can be corrected by upgrading the affected package to
version 1.0.2-0ubuntu5.2. After a standard system upgrade you need to
restart your browser to effect the necessary changes.
USN-124-1 fixed several vulnerabilities of Firefox. After that update,
several users experienced XML errors on various actions like adding
bookmarks (see https://bugzilla.ubuntu.com/show_bug.cgi?id=10643).
After installing these new packages and restarting the browser, these
problems should be fixed.