This is a superb add on. Working in additon with Keepa.com it can really save you money - it has saved me a good bit over the last year or so. Thanks to the developers

This plug-in really helps me a lot.
I also like to buy on AliExpress.com all worth a penny and much cheaper than you will find on the internet.
I suggest a good plugin-browser to view the history of changes in prices on AliExpress.com - is very helpful to determine the cheapest price from the seller, and to find this product in other sellers on the following link: https://goo.gl/u4lMcU
If you want return 18% off any purchase on AliExpress.com and other stores register on the link: https://goo.gl/7jb6Lr

This extension has been very useful to me and worked very well, but now I have (after inactivating all my extensions one by one) realised that Keepa has started causing some pages not to load. Any pages, not just on Amazon.

Reply to creator: Thanks for the quick reply. Glad to hear there's a solution coming.

This plug-in really helps me a lot,i've found lots of this sort of price tracer plug-in before,all of them charges or need Proxy which really troubles me..
all the way,author of the plug-in thx：D