It's currently breaking major retail sites like Wal-Mart and Home Depot. On these sites, Home Depot for example, if I search for a store item and go to that item's page I can see it for a few milliseconds and then the page just goes white. The only thing that fixes the issue is disabling this Add-On. I tired disabling all of my other add-ons, clearing the page's cookies and cache but the issue is this.

To test it for yourself go to HomeDepot.com, search for dewalt toolkits, and select one. Then try to look at the item. This add-on prevents me from doing so and makes the page solid white in both Firefox and MS Edge.