All versions have exactly the same functionality. They only differ in technical details and how they are packaged specifically for each browser.
Mobile Browser Not Supported!
It looks like you're using a mobile browser.
Browser extensions are not well-supported on mobile browsers, so Social Fixer won't run there, sorry. But just in case we've identified your browser incorrectly, download options may appear below.
Download Social Fixer for Firefox
It looks like you're using Firefox.
Click the download button below to install the extension from the official Mozilla Add-On Directory.
The version on the official Safari Extension Gallery is 22.0. The 23.0 update is pending approval from Apple, so it is not yet available at the download link below. Until it is approved, or if you prefer a local install, you can Install Version 23 From SocialFixer.com
It looks like you're using Internet Explorer or Edge.
Unfortunately, the extension system for Microsoft Edge is not yet available to developers. Only a few select extensions are available now. When extensions are opened up for all developers to create, Social Fixer will be one of them!
Until then, you can install the recently-release TamperMonkey Extension in Edge, and then use the User Script below.