10-second freeze, not responding, spinning wheel

[scottso]

With the latest version of Firefox and No Script, I get a temporary freeze lasting about 10 seconds accompanied by a spinning wheel and the browser title saying "not responding".

When I completely disable the extension, the problem goes away. I also tested by removing all extension except for No Script.

So far, this is only a problem on Ancestry.com which I use often. Usually happens on lists of DNA results or fact pages for ancestors.

It doesn't happen on Facebook, Google, or other common sites.

[barbaz]

When this issue occurs, do you see anything related in the Browser Console? (Ctrl-Shift-J)
(if you don't know what's related, turn off CSS warnings and post everything else you see)

[scottso]

This happens twice while trying to load a page on Ancestry.com:

[NoScript XSS] Sanitized suspicious upload to [https://36f1f23d.mpstat.us/###DATA###%7 ... %2Fjs%2Fv2

Did a Google search on mpstat.us and mfcreative.com. Found another user complaining of delays caused by mfcreative.com.

[barbaz]

Can you just block the request with ABE?

Code: Select all

Site .mpstat.us
Deny

If that doesn't fix the problem by itself, also add this line to NoScript Options > Advanced > XSS > Exceptions

Code: Select all

^https?://(?:[^/:]+\.)?mpstat\.us/