It was CCleaner, i think... anyway i unchecked all opera from CCleaner and i am using now History Eraser for Opera...

Thanks anyway!

Hello, something is wrong wich i don´t know what can be...
My OS:
Windows 7 SP1 X64 Prof. Ed
4 GB RAM (I don´t know if it is usefull or not, but anyway)...

Opera V 20.0.1387.64

Install path: C:\Users\Internet\AppData\Local\Programs\Opera
Profile : C:\Users\Internet\AppData\Roaming\Opera Software\Opera Stable
Cache : C:\Users\Internet\AppData\Local\Opera Software\Opera Stable

The fact is: 2 days ago i had few addons, yesterday when i started computer and opened Opera, no addons are there.
I checked also and no installed extensions, so all are gone.
So i added one to Opera yesterday ...
And again now, when i turned on computer ... no extensions, so the one I installed yesterday: gone.

What can be happening?

Thanks and have a nice day!