NoScript
www.techspot.com
this free, open source add-on allows JavaScript, Java, Flash and other plugins to be executed only by trusted web sites of your choice (e.g. your online bank).
NoScript also provides the most powerful anti-XSS and anti-Clickjacking protection ever available in a browser.
NoScript's unique whitelist based pre-emptive script blocking approach prevents exploitation of security vulnerabilities (known and even not known yet!) with no loss of functionality...
You can enable JavaScript, Java and plugin execution for sites you trust with a simple left-click on the NoScript status bar icon (look at the picture), or using the contextual menu, for easier operation in popup statusbar-less windows.
What's New
- x [Android] Work-around for Firefox "forgetting" tabs x [nscl] Improved cross-frame auto-patching
- Cross-browser file naming consistency, in spite of version numbering incompatibilities
- Fix for potential race conditions on certain page transitions
- Handle exception when accessing navigator.serviceWorker on sandboxed frames
- MS Edge support
Source www.techspot.com