Download Link: One-Click Installer FireFox Extension.
Description: This extension can be used to install plugins or themes on your WordPress blog with a single click. It adds a new entry to the popup context menu for links to .zip files, clicking it installs the plugin or theme file on the WordPress blog you have configured in the addons settings (the type – plugin/theme – is determined automatically).
Note: You need the following plugin installed on WP for this addon to work: Click Plugin Updater v. 2.2.
Download Link: WordPress.com Sidebar FireFox Extension.
Description: Get quick access to your wordpress.com account from Firefoxs sidebar. Easy to install and use.
Note: This extension will not work on self hosted blogs, pity that.
Install Video: http://gamespotting.net/wordpress.htm.
Download Link: Deepest Sender – Blogging Client FireFox Extension.
Description: Deepest Sender is a full blogging client for Firefox. This means that instead of having to go to the Update page on WordPress, or loading up a separate client program, all you have to do is hit Ctrl+\, or click the button in your toolbar, and you can start posting. A truelly amazing extension.
Note: It will run on the following Browsers Firefox, SeaMonkey, and XULRunner.
Download Link: DashBlog FireFox Extension.
Description: DashBlog is an extension that allows you to take videos on any webpage and then quickly post them to your WordPress blog.
Note: When it says “take“, I am sure you will ask the owners permission first.
Download Link: Clipmarks Firefox Extensions.
Description: Clipmarks lets you capture exactly what you want others to see (text, images or video). Your clips are saved on clipmarks.com. You can then post anything you clip directly to your WordPress blog.
Note: As well as WordPress it also supports Blogger and Typepad.
Download Link: WordPress Helper FireFox Extension.
Description: This extension gives you useful help and tools when you work with WordPress. You will have quick and simple access to the WP Codex. It’s also possible to search after strings of text that is currently marked. Furthermore it’s possible to easily switch to WordPresss backend of the current site. More than that, a small Icon indicates wether the currently displayed website makes use of WordPress. I have just installed this plugin, I hope it is as good as I hope.
Download Link: Screen grab to WordPress! FireFox Extension.
Description: This addon will grab a screen capture of any size, andallow you to directly upload it to WordPress (2.5+).
Download Link: WordPress.com FireFox extension.
Description: When you install this FireFox extension, you will get a tiny status bar panel that shows your current daily hits. You can right click the panel and hit “View Stats Details” and FireFox will happily take you to your normal stats page on WordPress.com. Small but useful.
Download Link: Zwordpress FireFox Extension.
Description: ZWordpress is a firefox add-on that lets you manage your wordpress blog in a faster way using keyboard shortcuts and more features.
Some Shortcuts: ALT+Z+Z: View site ; ALT+Z+X: Dashboard ; ALT+Z+Q: Write a post…
Note: This is the update for Firefox 3 Zwordpress for Firefox 3.
Download Link: WordPress Post FireFox Extension.
Description: This extension lets you post the text you select in your browser directly into your WordPress blog. Its simple to write a post, you can either click or drag the text to the statusbar icon, or use the browsers context menu.
Note: You also get the option to add text (i.e. quotation marks) before and after the selected text and even a hyperlink to the site from which you made your selection.
Download Link: Monkiri FireFox Extension.
Description: Monkiri lets you grab any part of a web page and instantly publish it either on your Monikri blog or send it to your Blogger or WordPress blog.
Download Link: ScribeFire FireFox Extension.
Description: ScribeFire, an extension of Firefox, enables users to easily drag and drop formatted text from the Web into their blog(s), post entries, take notes, and optimize their ad inventory, directly through the Firefox browser.
Note: Additionally ScribeFire allows you to: Categorize and tag your blog posts ; Upload images ; Set timestamps ; Save works-in-progress as notes ; Post an entry as a draft ; Share your posts on social websites ; Upload files via FTP.
Download Link: Kaalaga FireFox Extension.
Description: Easily link interesting phrases in your posts to relevant content. It uses OpenCalais (Reuters) semantic API to suggest phrases in your text suitable for linking, and Google search to present relevant links for selected phrases.
Note: It also works on Blogger, LiveJournal and TypePad.