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FastestFox - Browse Faster Nên dùng

Save time by speeding up repetitive tasks. Get faster, parallelized downloads, see definitions, auto-load the next page, improve searching, and more. FastestFox will dramatically enhance your productivity!

Rated 5 out of 5 stars (384)
249.158 users

The Amazon 1Button App for Firefox No Restart

Compare prices at thousands of retail sites with the Amazon 1Button App!
Get special offers and features right at your fingertips. Search Amazon and the Web at the same time, get a head-start on deals, add to your wishlist, and much more.

Rated 4 out of 5 stars (26)
121.114 users

如意淘:同款比价,价格曲线,降价提醒

自动比较同款商品在淘宝、天猫、京东等的价格,显示最近3个月的价格曲线,将商品添加到“想买”即可开通降价提醒。如意淘,淘我如意的!

Rated 4 out of 5 stars (12)
107.734 users

InvisibleHand

Automatically get the lowest price when you shop online or search for flights. InvisibleHand shows a discreet notification when a better price is available on a product or flight you're shopping for. Covers over 580 retailers in the US, UK & Germany.

Rated 4 out of 5 stars (172)
67.878 users

CouponsHelper Nên dùng

CouponsHelper automatically finds coupon codes from thousands of retailers while you shop online. CouponsHelper is hidden until it finds coupons, so no pointless pop ups !
Tutorial video: http://www.youtube.com/watch?v=SrYCmKdvzE4

Rated 4 out of 5 stars (16)
62.258 users

Ecosia - The search engine that plants trees! No Restart Nên dùng

Ecosia is a search engine that donates 80% of its income to a tree planting program in Brazil. By searching with Ecosia you can help the environment for free.

This extension adds Ecosia as a search engine in Firefox. Give it a try!

Rated 5 out of 5 stars (92)
59.553 users

eBay Sidebar

Official eBay add-on. Keep an eye on your eBay activity wherever you are on the web when you install the eBay Sidebar for Firefox. It’s a free tool built with eBay users in mind that will help you get more out of your buying and selling on eBay.

Rated 3 out of 5 stars (197)
53.612 users

Ciuvo - Price check in your Browser No Restart Nên dùng

Ciuvo finds best deals for your wanted product. Price check, comparison, customer reviews, product videos and coupons right in your web browser.

Rated 5 out of 5 stars (107)
40.102 users

WindowShopper - Discover Visually

Use visual search to find shoes, jewelry, home decor or any other product! Click on products images in any site to also compare prices, find deals, and get coupons.

200 Million products; from U.S., CA, UK, FR, DE, AU

by SimilarProducts.net

Rated 4 out of 5 stars (68)
35.464 users

AmazonSmile 1Button for Firefox No Restart

This is an official AmazonSmile extension for Firefox

Rated 3 out of 5 stars (15)
31.804 users

PriceBlink - Automatic Price Comparison & Coupons No Restart Nên dùng

**About 2012 Reader’s Choice Award: Best Browser Addon**

Automatically finds lower prices and money-saving coupons from thousands of retailers while you shop. PriceBlink stays hidden until you are shopping. US and UK.

Demo: youtu.be/UKxMx5bT-QM

Rated 5 out of 5 stars (88)
30.460 users

Ziftr Alerts (formerly FreePriceAlerts) No Restart

You do the shopping. We'll do the searching. It's that simple.

Rated 5 out of 5 stars (22)
29.100 users

The Camelizer - Amazon Price Tracker No Restart

Add price history charts and price watch features to product pages on sites like Amazon, Best Buy, and Newegg. Use it to make informed purchasing decisions and to receive price drop alerts via email, Twitter, or RSS feed.

Rated 4 out of 5 stars (68)
22.688 users

Gutscheinaffe

JETZT in über 2000 Onlineshops bares Geld sparen! Dieses Add-on enthält Gutscheincodes für über 2000 Onlineshops in Deutschland und Österreich. Es informiert dich direkt beim Einkauf darüber, ob ein Gutschein oder eine Rabattaktion verfügbar ist.

Rated 5 out of 5 stars (16)
20.966 users

Myibidder Auction bid sniper for eBay ("Snipe it")

Add a Bid Sniper to eBay auctions. It's linked to www.myibidder.com (originally www.myibay.com) Auction bid sniper for eBay service website where you can snipe and monitor your auctions for free.

Rated 4 out of 5 stars (106)
19.142 users

Enhanced Steam No Restart

Enhances the Steam experience!

Rated 5 out of 5 stars (29)
18.534 users

Boo.ly Shopping - Coupons, Best Prices, & Offers

Want to save money shopping online?

Automatically get the best prices, coupons & promo codes.

✔ Uses HTTPS
✔ Automatically get the best prices & coupon codes
✔ Works on search engines
✔ Product information

Safe · Discreet · 100% Free

Rated 5 out of 5 stars (64)
18.044 users

Amazon Price Tracker - Keepa.com

→ Price History charts
→ Price Drop & Availability Alerts
→ Daily Drops, an overview of recent price drops
→ Huge frequently updated product database
→ Supports Amazon [ .com | .co.uk | .de | .co.jp | .fr | .ca | .cn | .it | .es ]

Rated 5 out of 5 stars (9)
15.993 users

The Sea App

We make sure you get the best price.

No more searching from site to site. See it all on The Sea App.

- The Sea App shows you the best prices from your favorite stores within seconds!

Rated 4 out of 5 stars (6)
15.244 users

Fastest Search No Restart Nên dùng

This all-in-one search/browse/productivity boosting addon could replace many top addons yet offers MANY unique features like regex, smart searchbox, multi-tab preview, ... Ctrl-Shift-F activates a special FindBar more powerful than any browser/addon.

Rated 5 out of 5 stars (76)
14.512 users