I had the exact same concern. 

Glad someone else posted this. 

Jon_Hodl

Thanks for the info. Great idea, but I'll wait a while to see if these concerns are addressed 

siggy47

bitcoin

Forget  BAT, you can actually earn BTC while browsing with the slice extension

toofasteddie

The idea is interesting (if done correctly with the proper checks), but I have a few concerns regarding the extension:

Firefox:
```
* Monitor extension usage and manage themes
* Display notifications to you
* Hide and show browser tabs
* Access browser tabs
* Access your data for all websites
```

Chrome:
```
* Location: For example: region, IP address, GPS coordinates, or information about things near the user’s device
* Web history: The list of web pages a user has visited, as well as associated data such as page title and time of visit
* User activity: For example network monitoring, clicks, mouse position, scroll, or keystroke logging
* Website content: For example   text, images, sounds, videos, or hyperlinks
```

From a privacy and security perspective, this is a nightmare.