Filehippo - Filehippo is your key to opening files that Windows claims are "in use by another user" or simply "can't be found." Avoid the hassle.
Addoncrop - Extends the functionality of your web browser
Softonic - Softonic is a website that offers downloads for free software and games.
Chrome Extension Downloader - Chrome Extension Downloader is the name of a website dedicated for downloading and Chrome extensions.
Software Informer - Software Informer is your personal guide into the world of software: latest news, free software downloads, editorial reviews and much more.
Opera Add-ons - Get extensions and themes for the http://alternativeto.net/software/opera browser.