Extensions I use - part 3

It's time for a updated list of my previous postings here and here. These are the extensions I use, not just the ones I have installed.

Firefox Extensions

Web Developer - Adds a menu and a toolbar with various web developer tools.
LastTab - Allows tab navigation in a most recently used manner.
Linkification - Converts text links into genuine, clickable links.
LiveBookmarkThis - Gives an Add Live Bookmark option when right-clicking links
Gcache - Displays a google cached version of the webpage.
Location Navigator - Tools used to navigate up/down through the numeric portion of a location.
Popup Allow - Temporarily disables the popup blocker when the Caps Lock key is pressed.
CuteMenus - Adds icons to menus and popups.
InfoLister - Lists installed extensions and themes
Linky - Open/download/validate links and pictures in tabs or windows.
TDC CMS - Extension for TDC CMS
SwitchProxy Tool - A tool that allows you to manage and switch between multiple proxy configurations quickly and easily.
OpenBook - Allows for customization of the Add Bookmark dialog
Link Toolbar - A site-navigation toolbar
SearchStatus - Display the Google PageRank and Alexa ranking with search-related tools.
Favicon Picker - This extension adds UI for replacing bookmark icons.
QuickTabPrefToggle - Adds a toggle button for single window mode.
Adblock - Filters ads from web-pages
Launchy - Open links and mailto's with external applications like Internet Explorer, Netscape, Opera, Outlook etc
BugMeNot - Bypass compulsory web registration with the context menu via www.bugmenot.com.
undoclosetab - Adds Undo Close Tab.
Flat Bookmark Editing - Edit bookmarks in the bookmark manager, without opening the properties window.
Slashy - Fixes Windows backslash file separators in links and images

Thunderbird Extensions

Buttons! - Adds buttons!
View Headers Toggle Button - This extension adds a toolbar button that allows the easy toggling of viewing all headers. Now also plays nicely with Enigmail.
Folderpane Tools - Allows for customization of the folder pane such as rearranging accounts and choosing a startup folder.
Sender Policy Framework Extension - Checks emails against SPF records. Protects you from phishing.
Mail Redirect - Allow to redirect (a.k.a. "bounce") mail messages to other recipients
Launchy - Open links and mailto's with external applications like Internet Explorer, Netscape, Opera, Outlook etc
TB Attachment Tools Extension - You can now do all kinds of things with attachments.
MessageID-Finder - MessageID-Finder is a addon for the mozilla mail/news-client which helps you to find the message to a certain messageid.
AboutConfig - about:config
InfoLister - Lists installed extensions and themes