This is a collection of add-ons that I found interesting to review.
The easy way to download and convert Web videos from hundreds of YouTube-like sites.
The User Agent Switcher extension adds a menu and a toolbar button to switch the user agent of a browser.
Creates one Pdf from any amount of open Browsertabs,Bookmarks/-folder, Scrapbook(Plus) pages. This document can be archived, sended by e-mail or printed out with any standard Pdf Viewer.
When you find something on the web that you want to view later, put it in Pocket. It automatically syncs to your phone, tablet or computer so you can view it at any time, even without an internet connection.