an opera tip.

[ice60]

this is something i knew in the past, but had forgotten about. i just remembered it while i was cleaning my mouse

to scroll through open tabs try this -
right-click and scroll the mouse-wheel at the same time. i'll probably forget it again now until i clean my mouse again!

[zenwhen]

This is a default behavior in Firefox as well.

[Tamil]

You can also use CTRL+TAB. If you want thumbnails check opera:config#UserPrefs|UseThumbnailsinWindowCycle

[Kateikyoushi]

You can also use button 1 and 2 to switch back and forward between tabs, only useful if you do not turn off the tab bar or do not have 20+ tabs.
Good that they have the same controls for years.