I have installed and also properly configured AdBlock Plus. The problem is, that it doesn't remove all the ads. Sometimes I see ads at the bottom/top of the screen. Sometimes I see full screen ads and also there is an automatic popup after I unlock the screen lock(so not only in applications). I have installed also AirPush Ad detector. Are there any better apps for this purpose.
The way to go with this is having your device rooted and then install Adaway app. You can download from f-droid.org
Make sure you download the Adaway apk and not the F Droid app.
Once installed it modifies Android's hosts file and you won't see ads ever.
+ Adaway is great, but it's power is dependent from the Hosts-Lists you use. I used to add EasyLists (Adblockplus is using this) at least, the links can be found here: https://adblockplus.org/en/subscriptions
You can also try AdFree application from BigTinCan. You can download that at http://adfree.bigtincan.com/.