Filter removed when I open Firefox

[antostef]

Whenever I open Mozilla Firefox (in Linux OS), the filter is deleted. Why?

[mapx]

It could happen when the profile was corrupted.
Try resetting firefox, reinstall ABP. (first you should synchronize passwords, addons).

[antostef]

I have reset Firefox, I have reinstall ABP, but the problem is not solved...

[mapx]

try a new profile in firefox
https://support.mozilla.org/en-US/kb/pr ... x-profiles

[antostef]

I have created a new profile firefox, but the problem is not solved. I have understood the real problem: When I install the extension "Ant Video Downloader", the filter of the ABP is removed. Why does it happen?

[mapx]

In the past that addon was a little ... malicious:
http://www.computerworld.com/article/24 ... n-you.html

Who knows what it does now
The Ant Video Downloader has been reported as spyware
https://news.ycombinator.com/item?id=2567842

[antostef]

So, I solved in this way: with ABP I created a backup file of the filter, I renominated it "patterns-backup1.ini; I saved it in the "adblockplus" window. Voilà, the problem is solved.