Change the profile picture

I’like to change my profile picture and think to use one small in jpg format. But not succeed! Always come the alert: "Sorry, the file you are trying to upload is not authorized (authorized extensions: jpg, jpeg, png, gif). I’ll try png and gif. But not, Blocs community don’t except my pictures! The picture is in rgb. What is wrong here?

Can someone please answer to me.

I’ve just uploaded an image without problem. I made a small image (800x800) in a graphics app (in my case Pixelmator), exported as a jpg file at 80% quality - about 50kb and then uploaded it via the settings.

I try with Firefox browser and now it succeed. But not with the Apple Safari ???

Just clean the Safari cache and try again.