We’ve covered about Avast WebRep module which shows safety ratings for websites and search results in Firefox and Internet Explorer browsers. WebRep installs as a plug-in for Firefox and IE browsers with install of Avast 6. If you’re already using WOT or Norton SiteAdvisor tools to know the reputation ratings for the sites and search results, you can uninstall WebRep plugins for IE and Firefox to stop Avast WebRep from showing the safety ratings.
Update October 20, 2014: WebRep is now available in Avast as Avast Online Security extension in browsers, for more details
Uninstalling Avast WebRep Plugins for IE and Firefox Browsers
1. Open Firefox, from Tools Menu select Add-ons, select “Avast WebRep“add-on and click “Uninstall” button and restart the Firefox browser.
2. Similarly for IE, open Internet Explorer and from Tools Menu>select Manage Add-ons select “Avast WebRep” add-on and click “Disable” button.
Update 28/2/11 : As commenter Cytronix said you can easily delete WebRep plugins for IE and Firefox from Avast ‘s user interface.
Open Avast User interface, Click Additional Protection and then WebRep click Uninstall buttons for IE and Firefox plugins.