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Would often pop-up when unneeded, rarely actually worked when needed, and actually slowed other sites such as YouTube down to the point of not working entirely.

This addon has been using a huge amount of resources and slowing down not just browsing but performance of my system across the board. Needs to be bug fixed.

This add-on keeps slowing down / freezing pages. It didn't used to do it, please fix it!

Keep getting warnings from Firefox that this extension is slowing down the browser. Never saw these before. Please fix.

Crashes and makes firefox lag

Great app

It is good when it works, but it is causing major lag when using my browser because I have over 50 tabs open. It would be better if I could enable it on a tab when I need it, rather than it constantly searching my tabs for any returns available.

Today I finally found what caused my Firefox slow. I usually have over 50 tabs opened at the same time, but I use Auto Tab Discard to close inactive tab. With Cashreward I don't have problems when switching between tabs. But with Shopback turned on, I noticed it causes delay when click on other tabs, sometimes become no response. I have to disable it for now maybe it will get fixed in the future.

aplikasi yg sangat bermanfaat

還算不錯用, 在淘寶也能用

simple and convenient