If anyone has any suggestions or additions please PM me (rather than replying here) so I can add them to the list; you will be credited
Here are a few useful plugins for everyone's favourite browser. To install them just drag the link onto the main window area (making sure you have the option to allow sites to install software enabled), or download it and drag the file onto the main window area:
FireTune *MUST HAVE*
Actually a small freeware program instead of a plugin, this app allows you tweak and optimize your browser with a few simple clicks.
Official page
FlashGot
Enables Mozilla Suite, Firefox and Thunderbird to handle single and massive ("all" and "selection") downloads using the most popular external download managers for Windows, Mac OS X, Linux and FreeBSD (24 currently supported, see http://www.flashgot.net for details). FlashGot also offers a 'Build Gallery' functionality which helps to synthetize full media galleries in one page, from serial contents previously scattered on several pages, for easy and fast "download all".
Download it!
PDF Download
Allows to choose whether you want to view a PDF file inside the browser (as PDF or HTML) or you want to download it.
Download it!
Bandwidth Tester
Tells you the bandwidth of your current internet connection.
Download it!
FoxyTunes
Do you listen to Music while surfing the Web? Now you can control your favorite media player without ever leaving the browser and more. Supports WinAmp, iTunes, foobar2000, Windows Media Player, Musicmatch, Quintessential, J. River, jetAudio, XMPlay, MediaMonkey, Media Player Classic, Sonique, wxMusik, Real Player, XMMS, Noatun, Juk, Amarok, Music Player Daemon, Rhythmbox and many other players.
Download it!
PONG!
Features: * A toolbar button (like [Home]) of PONG! add it in the View/Toolbars/Customize menu. * 2 player mode. * Sound effects, and the option to disable them. * Color schemes to work around the weird problem on a Mac. Prefered color scheme is saved. * Some AI that kicks in if you are 3 points ahead of the computer.
Download it!
fireFTP
fireFTP is a cross-platform FTP client for Mozilla Firefox which provides easy and intuitive access to FTP servers.
Download it!
SessionSaver
SessionSaver restores your browser -exactly- as you left it, every startup, every time. Not even a crash will phase it. Windows, tabs, cookies + scrolling -- they're all saved. Use the menu to add + remove sessions; right, shift, or middle-clicking will delete. "Simple mode" for peace of mind, or "Expert mode" for advanced flexibility.
UPDATE 23-07-05: This is an updated version rewritten by 'rue' which adds crash recovery, custom sessions and true multiple window support.
Download it!
Tabbrowser Preferences (thanks solo)
Allows you to open all links in a background tab, without interrupting your work in any other windows.
Download it!
downthemall (thanks solo)
This plugin adds an option in the right-click context menu to download all pictures or videos from a webpage. Great time-saver when you want to grab a lot of images at once without having to save each one; excellent for pr0n if that's your thing
Download it!
SpellBound
"SpellBound is a port of the spellchecker code and user interface from the Mozilla Suite's Composer that enables spell checking in web forms such as html textarea / input elements (html input password elements are not checked by SpellBound) and rich text form elements. This allows you to spell check forms (e.g. message board posts, blog entries, wysiwyg, etc.) before submitting them when using your Mozilla Firefox or Mozilla Suite browser."
Download it!
Google Toolbar (thanks aquadog)
Adds a toolbar to your browser which includes a spell check, word translator, search bar, popup blocker, find feature and more.
Download it!
'x'
"x provides a toolbar button (which you can place wherever you wish via View > Toolbars > Customize... - it's labelled "Paranoia") from which you can quickly clear privacy sensitive data, specifically: history, form info, saved passwords, download history, cookies, and the cache (both disk and in memory cache). Clicking the button gives you a dialogue window from which you can select which data you want clearing." Check out the author's page here for more info.
Download it!
MiniT
Adds a few tab related functions:
1) docShell.allow* attributes can be changed via tab context menu.
2) Tabs can be switched by turning the mouse wheel on the tab bar.
3) Browser is refocused on UI middle click.
4) New tabs can be opened by double clicking on any tab.
5) Tabs can be dragged. If dropped within the tab bar the tabs will be reordered, otherwise only the url is dropped as text/x-moz-url, text/html, or text/unicode.
Download it!
undoclosetab
"undoclosetab allows recently closed tabs to be reopened. Tabs can be reopened via tabbar context menu, website context menu, middle click on the close button, or by a shortcut (Ctrl+Shift+F12 [Cmd+Shift+F12 on MacOS] which can be changed with the keyconfig extension)."
Download it!
GMail Notifier
Allows checking for new Gmail messages directly from the browser's UI. A status bar item will show once installed, and a toolbar item can be added by customizing the toolbar.
Download it!
Forecastfox
"Forecastfox is an extension that brings international weather from AccuWeather.comŽ to your Firefox web browser. You can use your US zip code or you can easily find your town or city by using the built in search tool. It is unobtrusive and lightweight, yet can be customized to display nearly as much data as the leading desktop weather programs! If you can't find what you are looking for, click the weather icons displayed to open the AccuWeather.comŽ forecast for your location. A slider, similar to when popup notification for when all downloads complete, pops up from the bottom right corner of your screen when the current conditions are updated. You can even set what appears in it or disable it!"
Download it!
Adblock (thanks dhiren)
"Adblock is a content filtering plug-in for the Mozilla and Firebird browsers. It is both more robust and more precise than the built-in image blocker. Adblock allows the user to specify filters, which remove unwanted content based on the source-address. If this sounds complicated, don't worry: it's not. Just add a few filters. Every time a webpage loads, Adblock will intercept and disable the elements matching your filters."
Download it!
Web Developer Extension (thanks Tyler)
Adds a menu and toolbar with various developer tools, including CSS features and multiple validation options.
Download it!
Colorful Tabs
Colors every tab in a different color and makes them easy to distinguish while beautifying the overall appearance of the interface.
Download it!
VideoDownloader
Download videos from Youtube, Google, Metacafe, iFilm, Dailymotion, and other 60+ video sites, and all embedded objects on a webpage (movies, mp3s, flash, quicktime, etc).
Download it!
Fasterfox
Fasterfox allows you to tweak many network and rendering settings such as simultaneous connections, pipelining, cache, DNS cache, and initial paint delay. Sets itself to Turbo speed by default and gives your browser a nice boost.
Download it!
FEBE (Firefox Extension Backup Extension)
FEBE allows you to quickly and easily backup your Firefox extensions. In fact, it goes beyond just backing up -- It will actually rebuild your extensions individually into installable .xpi files. Now you can easily synchronize your office and home browsers. FEBE backs up your extensions, themes, and (optionally) your bookmarks, preferences and cookies. Use with CLEO (below) for best results!
Download it!
FEBE (Compact Library Extension Organizer)
CLEO is a Firefox extension that works with FEBE to package any number of extensions/themes into a single, installable .xpi file. Requires FEBE (above)!
Download it!
Wikipedia bar
Adds a Wikipedia bar including a search feature and various editing features, as well as a context menu.
Download it!
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