This is a spam expansion! Two weeks ago, I noticed that when opening firefox for the first time every day, an ad page would open, and in most cases this spam page would be blocked by uBlock Origin, then I noticed that when this spam page was blocked by uBlock Origin, this blocked page would be closed, because every time the spam page blocked by uBlock Origin I used various antivirus software and scanned all the disks over and over again, but the situation of opening spam pages did not change every day, which made me on the verge of collapse, until this time, I installed packet capture software in advance, and when the blocked spam page popped up again, through the packet capture I found that the browser would visit go.2go2.top, and then the page would be redirected to https://itdise.info?directlink=1&code_type=1&sid=, which is the page blocked by uBlock Origin, I checked all the firefox extensions and finally I finally found the problem in the extension number 43579b99-cc1f-40c5-84ba-62c055d0edcf, this extension is exactly the Auto Refresh Page extension, I finally found the killer of the pop-up spam page, this is the extension that wasted my time for two weeks!