Log into your mail first, hold and drag it onto the title bar. This creates a quick link to your mail provider and you can land on it with a quick click.

It sounds browser malware issue to me. Have you recently downloaded anything or visited untrustworthy websites? If so, do try to scan the whole system for malware. If some risky stuff did slip inside, a security tool should be able to find it out easily.

Or, you can check by yourself by opening up browser extension manage page. Seeing anything suspicious, google it to find more details. Check the homepage settings as well since you have pop-up page issue.

Trovigo hijacks your site visits and then reroute them to selected websites. Most of the time, it does this to make money for its makers from its sponsors. It may even deliver malware onto your web browser. So, take actions to remove Trovigo quickly if you are harassed.