[_qulr]

Technically, you can sideload Chrome extensions with Developer mode, so I don't think that's much different from Android.

[jfrunyon]

The difference is that on Android you can get a different store, and the only thing you have to do is turn on dev mode and then download/run the apk.

There seems to be a lot more friction to sideloading a Chrome extension: download, unzip, turn on dev mode, click a button & navigate to the unzipped files...