uMatrix Good alternative? YES NO

Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc. uMatrix: A point-and-click...

Free Open Source Mac Windows Linux Chrome Opera Chromium Firefox

RequestPolicy Good alternative? YES NO

RequestPolicy is an extension for Mozilla browsers that improves the privacy and security of your browsing by giving you control over when cross-site requests are...

Free Open Source Mac Windows Linux Firefox

Flashblock Good alternative? YES NO

Flashblock takes a pessimistic approach to dealing with Macromedia Flash content on a webpage and blocks ALL Flash content from loading. It then leaves placeholders on...

Free Mac Windows Linux Firefox

ScriptSafe Good alternative? YES NO

A simple extension that brings some of http://alternativeto .

Free Open Source Mac Windows Linux Chrome

Lightbeam for Firefox Alternative?  YES NO

Lightbeam is a Firefox add-on that uses interactive visualizations to show you the first and third party sites you interact with on the Web. As you browse, Lightbeam...

Free Open Source Mac Windows Linux Firefox

Kill Evil Good alternative? YES NO

Kill Evil is a Chrome extension that mercilessly removes or disables the following annoyances on all pages (except those you whitelist): - oncontextmenu (disabled...

Free Open Source Mac Windows Linux Chrome

HTTP Switchboard Alternative? YES NO

httpswitchboard - Point & click to forbid/allow any class of requests made by your browser. Use it to block scripts, iframes, ads, facebook, etc....

Free Open Source Mac Windows Linux Web BSD Chrome Opera Chromium ... Chrome Web Store

• Discontinued "Important: No longer developed. [HTTP switchboard] ...has been split into two distinct, more advanced extensions: uBlock and uMatrix." quoted from https://github.com/gorhill/httpswitchboard uMatrix can do everything HTTP switchboard could and more, so I would redirect to it's page: http://alternativeto.net/software/umatrix/

JS Blocker Good alternative? YES NO

JS Blocker is a Safari extension that puts you in control of which scripts—and more—are allowed on any given website—similar to NoScript for Firefox. Frames, objects...

Free Open Source Mac Safari

RightToClick Good alternative? YES NO

Stops javascript annoyances such as forbidden right click, forbidden text selection or cascading dialog boxes. Enables right-click, text selection, context-menu...

Free Mac Windows Linux Firefox

Negotiator Good alternative? YES NO

Negotiator is a web extension which gives users who are familiar with HTTP requests the tool to simply block and modify them permanently.

Free Open Source Mac Windows Linux Android iPhone Chrome OS Android Tablet BSD ... iPad Chrome Haiku Firefox

Better Pop Up Blocker Alternative?  YES NO

Better Pop Up Blocker improves the default pop up blockers for Google Chrome and Apple Safari by blocking pop up windows opened by javascript, & other annoyances...

Free Mac Windows Linux Chrome

QuickJava Good alternative? YES NO

Allows quick enable and disable of Javascript, Cookies, Image Animations, Flash, Silverlight, Images, Stylesheets and Proxy from the Toolbar. This is great for...

Free Open Source Windows Linux Firefox