All In One Sidebar
All-in-One Sidebar is a sidebar control, inspired by Opera's. It lets you quickly switch between sidebar panels, view dialog windows such as downloads, extensions, and more in the sidebar, or view source or websites in the sidebar. It includes a slide-out button and a toolbar, all of which can be extensively customized.
Downloads all or selected embedded objects on a webpage. Can be used for downloading movies, mp3s, flash, quicktime, or other embedded files.
It lets you download all the links or images contained in a webpage and much more: you can refine your downloads by fully customizable criteria to get only what you really want
Fetch Text URL
Open plain text URLs from the context menu
A user Script manager for Firefox
Embeds Internet Explorer in a Mozilla/Firefox tab.
MR Tech Disable XPI Install Delay
Disables default delay when installing extensions.
Allows to choose if you want to view a PDF file inside the browser (as PDF or HTML), if you want to view it outside Firefox with your default or custom PDF reader, or if you want to download it
What do we do when a page is dead but we still want to see it?
we use this extension.
Searches through five big page cache/mirrors:
* Google Cache
* Yahoo! Cache
* The Internet Archive
* MSN Cache
Of course, not every page can be in every cache. When a page is unavailable, you'll generally see that site's error page. Hit back and try another one
ShowIP is a Mozilla Firefox extension which shows the IP Address of the current page in the browser's status bar and allows queries to different databases about it when you right click on it. The IP is colored red for an IPv4 address and green for an IPv6 address.