Hi, yes I got it also. I would say that if this was a site you go to before some malicious code has been added to their website with out them knowing it.

3 pages so far of people and of reports/analysis : https://www.google.com/search?q=%22westerndigitalmeasure.com%22&ie=utf-8&oe=utf-8&client=firefox-b

I would think they will have it cleanup soon enough. You can open Malwarebytes and click on Main Page bottom Updates to get new and also check if program update.

Please let us know if this solved your issue or if need further assistance.

Unfortunately, popular ad networks are sometimes used to hijack you over to a page promoting dangerous downloads or overpriced support services you don't need. It sounds as though Yahoo might currently be showing you such an ad and MBAM is blocking the redirect.

Have you ever considered using an add-on to reduce annoying ads? Perhaps that would help. Here's a popular one:

https://addons.mozilla.org/firefox/addon/ublock-origin/

As with any content blocking add-on, there will be pages that do not display correctly without some of the blocked content. If you trust the content, you can use the add-on's toolbar button to allow it so the page loads normally. Ultimately, it's your call on whether that occasional extra effort is worth the benefits.