To use these add-ons, you'll need to download Firefox.

Qqen
Tignit n uzegrir

Iceggiren i Undo Close Tab Button

Undo Close Tab Button sɣur Button Guy

4,4 n yitran ɣef 5
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Icegger-it RF
sɣur RF, pred 8 leti
How about one left click for last tab and right click for a list that can show more than 10 tabs? (20-30 I wish)

Tiririt n ineflayen

yeffeɣ-d deg pred 8 leti
The option to show more tabs landed in the update I did a few days ago. Check the extensions options.
As for the left/right click idea, not support by webextensions api. Believe me I would do something if it was possible.