Let’s face it, times are tough and every penny counts. Instead of just money saving websites, here is a list of 18 Firefox Add-Ons that will help save you money on a daily basis.

1. Listia – This is an auction site where everything is free; instead of cash, people use credits to get free stuff. The idea is to give away the stuff you don’t want any more and get stuff you do want for free. The more stuff you give away, the more credits you get. Then use those credits to get new things for free. Use this firefox add-on to help sort through all the free stuff on Listia.com.
2. InvisibleHand — This handy extension will act like its namesake and point you to better deals whenever you shop online. A discreet notification will pop up if the InvisibleHand extension finds a lower price in its database of over 100 different online retailers from the US, UK, and Germany. With information from major shopping sites like Amazon, Wal-Mart and Sears, InvisibleHand will help you find the best deals and save a ton of money in the process.
3. Offer Assistant — Tired of hunting down those discount and coupon codes when you shop online? The Offer Assistant is here to bring the offers to you! The extension helpfully includes any promo information regarding your item in your Google, Bing, and Yahoo! search results. Could it be any more convenient?
4. Advanced Travel — Traveling can get really expensive, and so people spend hours upon hours trying to find the best travel deals online. Advanced Travel makes things a lot simpler by displaying search results for the most popular travel websites. The extension’s engine reads your IP address to find out what area you’re in, and will alter the search results accordingly.
5. Ookong — Have you ever found yourself burning the midnight oil looking for the best prices for your Amazon.com item? Get some sleep and let the Ookong extension do the work for you. Ookong takes a look at an item’s price history, tracks any price changes, and tells you when the price drops. It’s like having a broker telling you exactly when the best time to buy is.
6. Woot Watcher — Woot.com is a quirky website that allows for major savings. The catch is, the site sells only one product for each day, in limited quantities. If you’d really like to get something you want at Woot’s rock-bottom prices, then, you need to watch the site religiously. This great extension does the watching for you, alerting you on the day’s product, price, and stock left.
7. Buy It Online — Ever found an item online you couldn’t wait to get your hands on? Didn’t want to waste any time browsing around for sites that might offer it at lower prices? This extension allows you to do that within seconds. All you have to do it right-click on the product, click “Buy it online”, and the extension will display several sites that sell it, too!
8. Savvy Circle Plugin — The Savvy Circle Plugin sends you an email whenever an item you have your eye on goes on sale. All you need to do is add the item to your Savvy Circle wishlist, and everything else will follow. With support for over 100 different online stores, you’re sure to save money with this extension.
9. ReminderFox — The fees on unpaid bills can add up, making your unnecessary expenses pile up into astronomical amounts. Do yourself (and your wallet) a favor by installing this extension. It acts like a to-do list in your browser, reminding you when important matters need to attending.
10. Lonely Planet — Looking for the best possible way to enjoy your trip? Save a few bucks by installing this extension. It’ll give you access to the Lonely Planet travel guides without having to buy the guides themselves. You can even plan a budget trip with the helpful information contained in the guide.
11. World Travel Guide — Are the Lonely Planet guides not enough for you? Blow your options wide-open as this Firefox extension gives you access to even more travel guides. It’s easy, convenient, and best of all, free!
12. Biet-O-Zilla — Did you ever find an incredible bargain on eBay, bid on it, only to have it stolen away from you just before the auction closes? This amazing extension helps you make last minute bids with ease. You’ll end up saving a ton of cash on your eBay purchases when you have the speed to get the best deals.
13. UpName Expired Domains Search — Working on an online business? The right domain name can have a significant effect on the traffic to your site. You can find top-ranked domain names for cheap by purchasing expired or deleted domain names. This handy extension searches all major domain sellers for these discount online gold mines, saving you the effort of tracking them down, and saving you money on a worthwhile investment.
14. Product Seeker Search — This Firefox search bar add-on is a boon to online shoppers. Simply enter a product into Product Seeker Search, and it’ll give you results for all the major retailers that handle that item. You can then organize results by price, product rating, and store rating to make sure you get the most bang for your buck.
15. PriceTrace Toolbar — Smart shoppers and bargain hunters alike will be drooling over this money-saving extension. The add-on gives you one-click access to price histories and price comparisons for over 40 major online retailers. The “Find Fillers” function will alert you of any special offers that you might qualify for while making your purchases. Best of all, the extension will inform you if an item you’ve had it track drops in price. What more could you want?
16. PriceBlink — If you like your Firefox extensions a little more discreet, then PriceBlink is for you. This browser plug-in works in the background, so you probably won’t even notice it’s there. Unless, of course, it can save you money. Whenever you go online shopping, PriceBlink will pop up if it’s found the same item at a lower price, or if it’s included in any special offers.
17. Dympol Discount Entertainment — Music-lovers can now keep their wallets nice and full with the discount offerings of dympol. Install the toolbar on your browser, and discount prices pop up in third-party music retailers like AmazonMP3. When you make your purchase at full price, cash-back rebates equal to the discount will automatically be sent to your dympol account. These funds can then be easily transferred to your PayPal or Amazon Payments account. You can use them to avail of discounts with dympol’s sponsors.
18. TimeTracker — As the old adage goes, “Time is Money”. The time you spend leisure browsing could be costing you, especially if it’s decreasing your productivity at work. Hold yourself accountable with the TimeTracker extension. It records how much time you spend leisure surfing, and can be set to ignore the time spent at work-related sites. Once you see how much time you’ve wasted on YouTube, Facebook and the like, you’ll find yourself actually doing some work for a change.