TickTick for Opera Sidebar (Unofficial Extension)

I don't care about cookies

Get rid of cookie warnings from almost all websites!

Rating: Total number of ratings: 201

Enhancer for YouTube

Tons of features to improve your user experience on YouTube™.

Rating: Total number of ratings: 1094

Site-specific Preferences

Edit preferences on a per-site basis

Rating: Total number of ratings: 23

Evernote Web Clipper

Use the Evernote extension to save things you see on the web into your Evernote account.

Rating: Total number of ratings: 603

Tabsbook

Rating: Total number of ratings: 93