My only objection is that tabs with the same title are considered duplicates (which is completely illogical) and this behavior cannot be disabled. Moreover, when I tried modifying the source code and installing the extension locally from file, it stopped detecting duplicates altogether even though the modification was straightforward and I'm pretty sure it should have just worked (I simply commented out the `else if (existingTitle === tab.title) {...}` block).

This is my first extension review, but I want to express that this is the first tab de-duplicator extension I've encountered that performs this straightforward task in a streamlined and intelligent manner. Thanks!