10-second freeze, not responding, spinning wheel

General discussion about the NoScript extension for Firefox
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scottso
Posts: 2
Joined: Wed Dec 07, 2016 1:14 pm

10-second freeze, not responding, spinning wheel

Post by scottso » Wed Dec 07, 2016 1:23 pm

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.
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0

barbaz
Senior Member
Posts: 9172
Joined: Sat Aug 03, 2013 5:45 pm

Re: 10-second freeze, not responding, spinning wheel

Post by barbaz » Wed Dec 07, 2016 2:18 pm

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)
*Always* check the changelogs BEFORE updating that important software!
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scottso
Posts: 2
Joined: Wed Dec 07, 2016 1:14 pm

Re: 10-second freeze, not responding, spinning wheel

Post by scottso » Wed Dec 07, 2016 3:57 pm

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

[NoScript XSS] Sanitized suspicious upload to [https://36f1f23d.mpstat.us/###DATA###%7B%22https%3A%2F%2F%22%3A%7B%22c%22%3A%7B%22.mfcreative.com%2F%22%3A%7B%22lib%2Ftgn%2Fcombo.ashx%3Fx%2F%22%3A%7B%22css%2Fv1%2Fmain.css%26x%2Fcss%2Fv1%2Factivity-indicator.css%26x%2Fcss%2Fv2%2Falert.css%26x%2Fcss%2Fv1%2Fautocomplete.css%26x%2Fcss%2Fv1%2Fbutton.css%26x%2Fcss%2Fv1%2Fcallout.css%26x%2Fcss%2Fv1%2Fcard.css%26x%2Fcss%2Fv2%2Fcarousel.css%26x%2Fcss%2Fv1%2Fcontainer.css%26x%2Fcss%2Fv1%2Fform.css%26x%2Fcss%2Fv1%2Fgrid.css%26x%2Fcss%2Fv1%2Ficon.css%26x%2Fcss%2Fv3%2Fmodal.css%26x%2Fcss%2Fv1%2Fpagination.css%26x%2Fcss%2Fv2%2Fpaging.css%26x%2Fcss%2Fv1%2Fpanel.css%26x%2Fcss%2Fv1%2Fphoto.css%26x%2Fcss%2Fv1%2Fsubcon.css%26x%2Fcss%2Fv2%2Ftab.css%26x%2Fcss%2Fv1%2Ftable.css%26x%2Fcss%2Fv1%2Ftemplate.css%26x%2Fcss%2Fv1%2Ftooltip.css%26x%2Fcss%2Fv1%2Fuser-card.css%26x%2Fcss%2Fv2%2Fprogress.css%22%3A%222c9%2C1i%22%2C%22js%2Fv2%2Falert.js%26x%2Fjs%2Fv2%2Fautocomplete.js%26x%2Fjs%2Fv1%2Fcallout.js%26x%2Fjs%2Fv2

Did a Google search on mpstat.us and mfcreative.com. Found another user complaining of delays caused by mfcreative.com.
Mozilla/5.0 (Windows NT 10.0; WOW64; rv:50.0) Gecko/20100101 Firefox/50.0

barbaz
Senior Member
Posts: 9172
Joined: Sat Aug 03, 2013 5:45 pm

Re: 10-second freeze, not responding, spinning wheel

Post by barbaz » Wed Dec 07, 2016 5:59 pm

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/
*Always* check the changelogs BEFORE updating that important software!
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