community-repo/contributions/research/polkadot_js_extension.md

PolkadotJS Browser Test

The extension is optimized for usability and hides complexity. Compared to the Pioneer UI where three algorithms can be selected for key creation the extension uses sr25519 for creation and is able to import other types as well (polkadot-js/extension#339).

The minimal password length is 6 characters while Pioneer has no restrictions.

Cross-chain keys have been tested with https://testnet.joystream.org and https://polkadot.js.org.

According to the extension repository there is no cross-device functionality. It doesn't appear to sync with remote browser profiles and users have to re-import keys for every browser / device separatedly.

Android

Browser | Google | Brave | Tor Browser -- | -- | -- | -- Installable | Yes | Yes | No (Experimental) Usable | No¹ | No¹ |  

1) Neither a popup nor a symbol are shown.

Linux

Browser | Firefox | Tor Browser | Chrome | Chromium -- | -- | -- | -- | -- Installable | Yes | Yes | Yes | Yes Cross-chain keys | Yes | Yes | Yes | Yes Can you import raw seeds, mnemonic seeds and/or jsons | Yes | Yes | Yes | Yes Can you create new seeds and or jsons | Yes | Yes | Yes | Yes Can you export seeds and or jsons | Yes | Yes | Yes | Yes

MacOS / iOS

Safari: No extension available for download, but developers can build it themselves (see polkadot-js/extension#377 and A Change to the Safari Extension, January 2019).

There are other browsers that might work with the extension: Brave, Chrome, Edge, Firefox, Opera. If you can, please create a PR to extend this report.

Windows

Browser | Brave | Chrome | Edge | Firefox | Opera | Tor Browser -- | -- | -- | -- | -- | -- | -- Installable | Yes | Yes | Yes | Yes | Yes | Yes Cross-chain keys | Yes | Yes | Yes | Yes | Yes | Yes Can you import raw seeds, mnemonic seeds and/or jsons | Yes | Yes | Yes | Yes | Yes | Yes Can you create new seeds and or jsons | Yes | Yes | Yes | Yes | Yes | Yes Can you export seeds and or jsons | Yes | Yes | Yes | Yes | Yes | Yes