FireFox Addson crashes a lot.

Browsing while having Catblock Adds-on on Firefox, It simply crashes. visit twitter.com for example:


<img src="https://serving.photos.photobox.com/17372146701b6088c54f63d67499c00d68dd79099c8e677265fa7249c6abee32cd229a8d.jpg"/>

This method is causing the delay, and no wonder why: debug_print_selector_matches(data)