UserAgent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.75 Safari/537.36

Example URL:
all URL's(another mistake in your form improve that too) can do it.

Steps to reproduce the problem:
1. open 20 tabs.
2. then go to history and randomly open 15-20 more tabs.
3. and then you will find yourself in situation of removing duplicate tabs from the browser which is total time wastage. 

What is the expected behavior?
Chrome should detect the duplicates after the number exceeds 10 tabs atleast. 

What went wrong?
It is very difficult to find out duplicate tabs in 20 or 30 tabs.

Does it occur on multiple sites: Yes

Is it a problem with a plugin? No 

Did this work before? No 

Does this work in other browsers? N/A

Chrome version: 55.0.2883.75  Channel: n/a
OS Version: 10.0
Flash Version: Shockwave Flash 24.0 r0

I am very good developer,and I know I can make your browser better for others to use.Give me this task and I'll show you.If you will I'll point out 10 issues more.