User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9) Gecko/2008052906 Firefox/3.0 Build Identifier: This would match the ability we currently have to allow/deny cookies, images, pop-up windows, and extension/theme installations on a per-site basis. The rationale behind the whitelisting/blacklisting for cookies, popups and extension/theme installations is presumably to let the user choose which sites can and cannot be trusted. Adding plug-ins to this would allow the user to disallow potentially exploitable plug-ins like Java and Flash on those sites he/she does not trust. Reproducible: Always Steps to Reproduce: 1. Open "Page Info" dialog 2. Go to "Permissions" tab Actual Results: There are options for allowing/disallowing images, cookies, popups etc but nothing for the Java or Flash plug-ins, or any plug-ins. Expected Results: Options for disallowing plug-ins. This functionality is currently available through extensions. However, adding it in to core would make this a lot neater both in implementation and in UI.