So you’re the web-savvy entrepreneur with enough business acumen and drive to make a success of your online venture. Now add to your arsenal with the best tools that will enhance your efficiency, and personalize the way you browse the Internet and scour it for information, making it obey your commands with little effort and even less time. Here are 20 extensions for the popular open source browser Firefox, that are a must-have in every entrepreneur’s tool kit.

1. Time Tracker: Productivity being the hallmark of a successful entrepreneur, time is of the essence when work is being done. How often have you looked at the clock with dismay to find that the day has gone by, and then at your work space with more dismay to find that you have no substantial results to show for all those hours? Time Tracker helps you keep track of the time you spend browsing the Internet using Firefox, enhancing your efficiency and effectiveness in the process. The counter, which pauses when you stop browsing, can be reset or set off for certain sites. A tooltip shows you the time that has gone by since you installed the add-on, the time since the last reset, and the time gone by today. The counter automatically resets at midnight.

2. Answers: The Internet made those big, heavy paper dictionaries almost obsolete. Now Answers allows you to look up answers and meanings on various dictionary and encyclopedia sites across the Web without having to explicitly surf their pages. All you have to do is hold your mouse over the word in question and press Alt and click (Ctrl for Linux users). A tooltip shows you relevant information on the same page. If you prefer the answer on a new tab, press Ctrl+Alt and click the mouse, and for a new window, use Shift+Alt.

3. Linkedln: A handy tool that links you to a network of professionals you can utilize for your business needs and contacts. The online community helps you find the employees you need through direct searches or referrals.

4. Firefox Extension Backup Extension: There’s no emphasizing the importance of backing up your data – and here’s an add-on that allows you to back up all your Firefox extensions, passwords, bookmarks, themes, preferences and cookies. Not only that, you can also standardize your browsing needs no matter which computer you use – FEBE allows you to synchronize your browsers on different computers by creating installable files when it performs the backups. 

5. Firefox Companion for Ebay: If you do regular business on eBay, then this tool is an absolute necessity in your kit. You can stay signed into your account, on a secure basis, as long as you need to monitor bids on your site. This add-on allows you to set tailor-made alerts for both normal and auction listings.

6. Clipmarks: Bookmarks are fine, they help you store web pages to peruse as and when you need them, but there are times when you forgot what exactly caught your eye on a particular page and spend a considerable amount of time and effort in trying to figure out what it was. Well, such a situation need no longer arise with Clipmarks – you can save only the parts of the page you think relevant to your interest, be it some text, a link, a picture or a video. Besides saving them to your computer, you can also publish them on your web page (copyright issues not withstanding) or send them to friends. ClipSearch allows you to run a search inside the content you’ve clipped, based on keywords, tags, descriptions and titles.

7. Download Statusbar: This nifty add-on allows you to view the status of your downloads without having to open another window. It includes an interface that you can set to hide or show as and when you need. 

8. WebMail Notifier: Tired of checking multiple email accounts? With WebMail Notifier checks Hotmail, Yahoo, Gmail, Daum, Naver, Empas and Nate accounts and lets you know how many new emails are in your inboxes.

9. WorldClocks: Working online means you tend to do business with people all over the world – and keeping track of local times is useful in such situations. WorldClocks allows you to view the dates and times at some of the world’s major cities.

10. Scrapbook: The Scrapbook extension not only lets you save web pages, it also lets you save parts of pages and whole websites, and also allows you to organize and manage your collection using easy search techniques.

11. BlueOrganizer: Reduce your browsing time with this smart tool – Blueorganizer helps you navigate easily between your favorite web sites. The add-on automatically adds shortcuts based on your browsing history, and takes you to those pages accordingly.

12. Mr. Uptime: A must-have tool if you have a very slow Internet connection – this add-on tries to access pages in the background even as you browse other pages that do open readily.

13. Foxmarks Bookmarks Synchronizer: Using different computers for your browsing needs does not mean you have to save your bookmarks on each on a dedicated basis. With Foxmarks Bookmarks Synchronizer installed on all the systems you use regularly, all your bookmarks are synchronized across all the computers. Using my.foxmarks.com, you can use any system to organize your bookmarks.

14. Calc: Keep a calculator handy for those quick computations, either in your sidebar or toolbar.

15. Free eBook Search: Looking for eBooks just got easier with this cool tool – base your search on book names, ISBN numbers, descriptions, author names or links.

16. Copy Plain Text: If you’re sick of all the hidden formatting, links and pictures that clutter a web page, then this extension is all set to be your new best friend. It allows you to copy just the text on any web page, even without the spaces that surround the words.

17. Adsense Notifier: Trying to earn a few bucks on the side with the ads on your site? Adsense Notifier keeps track of your income by displaying your Adsense earnings on your sidebar.

18. Yoono: Need all the information you can get your hands on related to a particular subject? The Buzz It! feature allows you to create a scrapbook of all text, pictures, videos and links that you think are important with just one click. You can add your own comments and descriptions to the page you just save, thus making it personal.

19. InFormEnter: Filling out web forms take up some time – time this tool is designed to reduce. InFormEnter adds an icon, that you can set to display information that you regularly enter, to each web field that requires data entry. One click on the icon and a drop down list lets you choose the information to be entered in that particular field.

20. PwdHash: A security measure for those of you who transmit sensitive information over the Internet, PwdHash generates per-site passwords when you prefix your password with @@ or press F2 before you enter the field. The tool prevents JavaScript from reading your password.