6. Scribefire - Performancing.com’s popular split-browser blog editor. Multiple blog management, categories and simple source editing. FTP Uploads are available but buggy. No good image support.

7. Deepest Sender - Very similar to ScribeFire, these two extensions lack greater features like image uploading, time-stamp editing and compatible tagging. Both are very easy to set up.

8. Resizable Text Area - If you stick with your regular blog editor, such as Wordpress, this extension comes in handy to resize the text area quickly and freely.

9. Spellbound & Google Toolbar - Inline spell-check, ala Microsoft Word. Use the extension or Google Toolbar’s built-in spell-checker. Both work great. Superseded by Firefox 2’s built in spell check.

10. Tabinta - turns the Tab Button to a text editor spacing tab rather than cycling through the web forms. Only interacts with the text area, otherwise does the regular Firefox tabbing.

11. Split Browser - Great when copy and pasting content and URLs, this extension makes it easy to split any tab any which way. Put your editor in a ’sidebar’ and continue surfing the other tabs in the other pane.

12. Copy Plain Text - This is a can’t-live-without extension for me. When I copy text, I don’t want any of the original site’s formating, links or text-link-ads to be copied over as well. Just the text. That’s what this extension does.

13. Copy As HTML Link - Use this extension in conjunction with Copy Plain Text to create links for your posts. Only make links when you want with the text you want.

14.Web Developer - Other than View Source and those functions, Web Developer is great for getting image information like size etc. If a site is making it hard to get access to their images, use the View Image Information button to get all the images and their links. Respect copyright.

15. Snagit - to use with the SnagIt image capture application, this extension just makes it easy to start grabbing screenshots while still in Firefox.

16. Picnik- this web based app trumps SnagIt in many respects. With the Picnik extension you can grab a screenshot of the visible page, or the entire page, with one click. The same goes with any images on the web, including a button at Flickr.com.

Picnik is also a very good image editor. I don’t use anything else to edit images for articles. You can take any photo, from your computer, Flickr or Picasso account, or anywhere on the web, and start editing without downloading anything to your computer.

Twitter is still strong and kicking. For most of us a day rarely goes by that we don’t notice some new Twitter tool in the wild. The ideal place for Twitter-related tools is the firefox web browser, which is apparent from the quick-rising number of Firefox plugins. We’ve got 8; you let us know if there are more!

1. Twitbin Twitbin can be used to send and receive messages from Twitter, it’s a sidebar (which, unfortunately, means it’s occupying the space where most users like to keep their bookmarks) and it looks quite nice.

2. Tweetbar Tweetbar works with both Firefox and Flock, and just like Twitbin, it’s a sidebar-based plugin which you can use to send and receive messages from Twitter.

3. TwitterNotifier As the name suggests, TwitterNotifier notifies you with updates from your Twitter friends. Instead of being located in the sidebar, it’s activated with a small icon in the right bottom corner of Firefox. Of course, you can also send Tweets with it. Also, when your friends write new tweets, a small balloon box appears in the right-bottom corner in a browser window. If you click it, your friend’s Twitter page will open in a new tab.

4. TwittyTunes If you think that the world should know exactly which song are you listening to at any given time, then TwittyTunes is the plugin for you. It works with the FoxyTunes Firefox extension (but it’s not obligatory; it just won’t post music info without it), and it allows you to automatically post your currently playing songs to Twitter. Furthermore, you can also let everyone know what website you’re currently viewing, and what videos you’re watching.

5. Ludicrous For those who don’t like sidebar-based plugins, Ludicrous might be the ideal solution. It allows you to post updates to Twitter directly from your Firefox search bar. Once again, standard safety measures apply: don’t forget to change your Firefox search bar to a search engine, otherwise you might accidentally post your search query to Twitter.

6.Twitter Firefox search plugin We’re not sure that this plugin even has a name, but it works quite similar to Ludicrous. Just click the link and it will be added to your search bar, from which you can now send Tweets.

7. Twitterbar

It is basically the same Ludicrous, but you constantly find yourself accidentally sending your search queries to Twitter, with an important difference: you post tweets from your address bar, not the search bar. Simply type in the address bar, and then click on the small grey icon on the right, which will tell you how many characters you have left as well as let you post the tweet.

8. Power Twitter by 30 Boxes The plugin for power users comes from 30 boxes, and it’s named accordingly: Power Twitter. Instead of adding functionality to Firefox, it adds features to your actual Twitter page; it embeds Flickr and YouTube, shows you the true addresses of tinyurls, maps links to web page titles. Additionally, it maps user information from 30 boxes, so you can get the latest updates and additional info for those Twitter friends who use 30 boxes.

CSS Validator: CSS Validator adds a right-click option in your browser, sending the CSS to the W3C CSS Validator. It opens the results in a new tab. CSS Validator is a nice tool that will come in handy often.

CSSViewer: No Web designer should be working without CSSViewer. The add-on informs you of all the CSS information you'll need from a site. Simply click on the page you want, open it in the Tools menu, and it will display CSS information. I use it almost every day.

FirePHP: FireBug is a fine tool for CSS, HTML, and JavaScript, but FirePHP, which only works when you have the FireBug extension installed, creates a full-featured development experience. With the help of both add-ons, you can view the quality of your PHP and find errors. It's a great aid.

Aardvark: Aardvark lets you select elements from a Web page and perform various actions on them. I use it to analyze the structure of a page. You can also remove and isolate elements or generate DOM code. I highly recommend it.

HTML Validator: HTML Validator is an extremely powerful tool available to Windows users only. The add-on gives you feedback about errors on the page. It also lets you know where problems need to be addressed. But unless you're an advanced Web designer, stay away from this tool. It's very complicated.

ColorZilla: If there's a color on a Web page that you like, ColorZilla will find the precise code for it and allow you to paste it into your coding program. You can also create custom colors with its built-in palette browser. It saves the most-used colors for easy access later on. It's powerful, it's simple, it's a must-have.

FireBug: Firebug is one of those extensions that you simply can't be without. It lets you edit, debug, and view CSS, HTML, and JavaScript. Once you make a change to the HTML on the site, Firebug automatically displays it in the same pane. It's extremely powerful.

Style Sheet Chooser II: Style Sheet Chooser II replaces Firefox's built-in style sheet switcher and allows you to pick an alternate style that will persist on all pages of a Web site. It's not something you'll use often, but when you do need something of the sort, Style Sheet Chooser II is the way to go.

Font Finder: Font Finder allows you to highlight a font you like on any site, right-click on the selection, and after choosing "Font Finder", view the full CSS text styling of the selection. You can then paste that into your own Web page.

YSlow: YSlow requires FireBug to be installed for it to work, but it's a great way to find out why your site is running so slowly. It analyzes Web pages and returns issues that are slowing the site down, based on Yahoo's rules for high-performance Web sites. I use it often to find out where I can improve the speed of my sites. Try it out.

Java Console: If you want to see how Java applets are running on Web pages, the Java Console is for you. You can monitor and debug applets, and get a full report on their performance.

Web Developer: If you install any of the extensions in this roundup, Web Developer should be included. It adds a menu and toolbar to Firefox giving you the option to display a page's style, view and edit CSS, and much more. No Web developer should be without it.

LinkChecker: LinkChecker highlights links on any Web site and tells you if the link will direct you to a live site or if it will return a 404. I use it every day.