CustomTitle

Imagine you have three pages on the same example.com with the same title "Dashboard - Website name" but contents are different:

https://example.com?content=alpha
https://example.com?content=beta
https://example.com?content=gamma

You can see same url structure but "content" parameter values are different.

So we can set up the rule:
Domain - "example.com" with replacement text: "Content"
Parameter - "content" with values and replacement text:
... alpha - "Alpha"
... beta - "Beta"
... gamma - "Gamma"

which gives us respective tab names:
Content | Alpha
Content | Beta
Content | Gamma

By default separator is " | " but you can change it in options page