Here are some of my extensions that might be useful to you.
1). 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.
http://spellbound.sourceforge.net/
2). MeasureIt: Draw a ruler across any webpage to check the width, height, or alignment of page elements in pixels.
http://www.kevinfreitas.net/extensions/measureit/
3). ColorZilla: With ColorZilla you can get a color reading from any point in your browser, quickly adjust this color and paste it into another program. You can Zoom the page you are viewing and measure distances between any two points on the page. The built-in palette browser allows choosing colors from pre-defined color sets and saving the most used colors in custom palettes. DOM spying features allow getting various information about DOM elements quickly and easily
http://www.iosart.com/firefox/colorzilla/
4). Adblock: Once installed, it's a snap to filter elements at their source-address. Just right-click: Adblock: done. Filters use either the wildcard character (*) or full Regular Expression syntax. Hit the status-element and see what has or hasn't been blocked.
https://addons.mozilla.org/extension...cation=firefox
5). FlashGot: FlashGot is a free Mozilla/Firefox/Flock/Thunderbird extension (compatible with Netscape too), meant to handle single and massive ("all" and "selection") downloads with several external Download Managers.
* for Windows (FlashGet, Free Download Manager, Fresh Download, GetRight, HiDownload, iGetter, InstantGet, Internet Download Accelerator, Internet Download Manager, LeechGet, Mass Downloader, Net Transport, NetAnts, ReGet, Star Downloader, Thunder (Chinese only popular product), TrueDownloader and Ukrainian Download Master [Russian language only] ), WellGet
* for Linux / FreeBSD / other Unix-like OSes (Aria, cURL, Downloader 4 X, GNOME Gwget and KDE KGet )
* for Mac OS X (iGetter and Speed Download 3)
FlashGot turns every supported download manager in a download manager for Firefox!
FlashGot offers also a Build Gallery functionality which helps to synthetize full media galleries in one page, from serial contents originally scattered on several pages, for easy and fast "download all".
http://www.flashgot.net/whats
Please post some of your extensions so others can benefit
FireFox Extensions
Linear Mode
