The Norton Toolbar is now compatible with Firefox 26. We have released a Firefox 26 compatibility patch for Norton Internet Security, Norton 360, and Comcast Norton Security Suite 220.127.116.11, which is available via LiveUpdate. Please see the Firefox 26 Compatibility Announcement for version details and troubleshooting any problems with the update.
To receive automatic notifications of Firefox Compatibility Patch updates, please visit the Product Update Announcements section of the community, specifically the Firefox label in the right column. At the top of this page, you will seen an option to "SUBSCRIBE to this label", which will sign you up for email notifications every time we post an update related to Firefox.
Tony Weiss Norton Forums Global Community Manager Symantec Corporation