How to Remove Duplicate Content Webmaster tool?

[nasavsisro]

hi

Google webmaster tool show Duplicate meta descriptions means content for example:

mysite.com/abc
mysite.com/abc:
mysite.com/abc?wpmp_switcher=desktop
mysite.com/ab...

these are one link but show many i can do 301 redirect but Q? is how many time i want to Block or auto redirect

these word in last show above ..:facepalm:
i'm using wordpress

 

[traxport121]

Don't you use All-in-one-SEO plugin or a similar SEO plugin?