New tabs on right side & Metacritic search engine Noté 5 sur 5 étoiles

I thought the new tabs usually opened on right side in earlier versions (didn't they?) and then recently it changed, thats why I was confused.

About MC: its listed 8 times in my search engines, screenshot
After I delete it, it appears again after I close and open the search engines window one more time.

Cette critique concerne une version précédente du module (3.31.1-signed).  Cet utilisateur a d’autres critiques de ce module.

I'll provide an option to open tab on right again, despite that I'm convinced that opening on left is better.

I don't know how that 8-time MC issue showed up. I might need you to email me to reproduce error or test fix. Pls email using the addon page's "Support E-mail" link.