[Unrelated] NS incompatability Yahoo Mail Notifier FX21

[linzi]

Yahoo Mail Notifier (YMN) mail icon R Click drop down menu box on FX21 Toolbar is non functional when NS is enabled. When NS is disabled (YMN) mail icon R Click drop down menu box functions normally. (YMN) mail icon R Click drop down menu box functions normally in FX19 with NS enabled. Could you please shed some light on this thanks?

[therube]

For reference, Yahoo! Mail Notifier.

WFM.
Change, Preferences, Check, Logout.

Does it work in a new, clean Profile with just the two extensions installed?
Possible that some other extension is causing problem?

[linzi]

Thank you. The issue has been successfully resolved. The offending Plugin was Avast WebRep which was a simple one click process to remove via the Avast settings menu. No more incompatibility issues. WebRat has an unfavorable WebRap and is the cause of similar issues within the IE and Chrome browser camps. There appears to be no real functional security advantage that warrants having the addition of Avast WebRep plugin. NoScript rocks. High five to the developer and support network. Kind regards.