Why do new tabs open behind my main tabthat have nothing to do with what i click on, It's always an advertisment or a video that starts playing behind main wind
When i click on a link it will open that page but it will also open a new tab behind it, it's always a smaller window that's an advertisement and usually has a video that starts playing as I'm watching a video on the main page. Sometimes it opens more than one tab with the same results and I do have the no pop ups checked in settings. It's driving me crazy.
Additional System Details
- Shockwave Flash 27.0 r0
- User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:49.0) Gecko/20100101 Firefox/49.0
Sounds like you may have picked up a dose of Malware. Please see this support article. http://support.mozilla.com/en-US/kb/Is+my+Firefox+problem+a+result+of+malware