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Tab Mix Plus
It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows. 可取代 Tabbrowser Preferences + SessionSaver 的功能。
Embedding Internet Explorer in tabs of Mozilla/Firefox.
adds a highlight to the paragraph you're reading, and with a single keystroke, moves to the next, automatically scrolling the page for you.
enables you to easily swap all your cookies so that you can be logged in to multiple web e-mail accounts (like Gmail and Yahoo! mail) at the same time and quickly switch between them.
Add N Edit Cookies
Cookie Editor that allows you add and edit "session" and saved cookies.
You will have the power to select any text on any page and use that text to:
To save Web pages and easily manage collections.
Convenient tool to create small url redirects from long ones
Converts text links into genuine, clickable links.
Add Bookmark Here
Allows you to add bookmarks to any folder in the bookmarks menu like in Opera.
Flat Bookmark Editing
Edit bookmarks in the bookmark manager, without opening the properties window.
All Yoono - Sync & Social bookmarking
a bookmark manager which allows you to share bookmarks (social bookmarking) with the Yoono community. It is integrated into Firefox's bookmark manager, so you don't have to import/export or change your habits. 也具有 Bookmark Duplicate Detector 和 Bookmarks LinkChecker 的功能。
Add persistent highlights and sticky notes to anywhere on any webpage
Keep, share and discover all your favorite things.
A calculator with advanced features Installed in the tools menu.
Google Toolbar for Firefox
Take the power of Google with you anywhere on the Web!
Download one link, selected links or all the links of a page at the maximum speed with a single click.
Allows to choose whether you want to view a PDF file inside the browser (as PDF or HTML) or you want to download it!
Now you can control your favorite media player without ever leaving the browser and more...
As you glide the mouse over the page, you will see a red rectangle framing each element under the cursor. You will also see a little yellow caption showing the HTML element type and its class or id if they exist.
View formatted source
Displays formatted and color-coded source and optional CSS information for each element.
A tool that can be used to inspect and edit the live DOM of any web document or XUL application.
Adds a menu and a toolbar with various web developer tools.
a wrapper for the Xinha HTML editor that enables WYSIWYG editing in any HTML textarea and text input elements.