Adblock not blocking ads on my rooted cellphone

Hello, I rooted my cellphone and installed adblock, it asked to be superuser and I clicked on allow. After installed it, I restared (reboot) my phone and after I tryed Skype. The ads is still present. I tryed this page http://ads-blocker.com/testing/ and I still see the ads on the page, especialy the one at the end of the article. I checked on my root program and adblock plus does have root privileges enabled. Why it does not work on my phone ? Why it does not block any ads at all ? The ads that skype show me is not the same that before I installed adblock so ads server is still reachable by skype.
Adblock plus works for the testing page on my no-rooted acer tablet with the wifi proxy configuration, but does not work app ads at all either, or ads take just more time to be shown.
Device model: Samsung Galaxy Core SM-G386W
Android version: 4.4.2
Root software used: KingRoot V4.62
Adblock version: 1.3
Adblock filter: Liste AR+Liste FR+EasyList
Adblock acceptable ads: No
Adblock enabled: Yes
Adblock start at boot: Yes
Thank you for you support.
Adblock plus works for the testing page on my no-rooted acer tablet with the wifi proxy configuration, but does not work app ads at all either, or ads take just more time to be shown.
Device model: Samsung Galaxy Core SM-G386W
Android version: 4.4.2
Root software used: KingRoot V4.62
Adblock version: 1.3
Adblock filter: Liste AR+Liste FR+EasyList
Adblock acceptable ads: No
Adblock enabled: Yes
Adblock start at boot: Yes
Thank you for you support.