Updating Firefox will disable the Firefox add-on that ESET uses to modify some browser features, but it will not disable your ESET Smart Security program. ESET will still run on its own, outside of Firefox, and Firefox will still use it to scan files for viruses. The add-on will be re-enabled as soon as ESET provides an update to mark it compatible with Firefox 6. You can [http://www.eset.com/us/support/contact/s1# contact ESET support] to ask when they plan to have an update available. If you want to update Firefox now without disabling the ESET browser add-on, then you can enable it with the Add-on Compatibility Reporter. For details, see: [[Add-ons are disabled after updating Firefox]]