In Opera there is no support for Rich Notification API https://dev.opera.com/extensions/apis/
Latest posts made by kuchkan
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RE: Rich Notifications doesn't work/showOpera add-ons
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RE: Very long extension moderation processOpera add-ons
Submitted my Extension on May 9, 2017. It's been 2 months.
Still awaiting moderation. On messages no one answers. X(