You can still install it as a local extension in developer mode:
1. Go to <chrome://extensions> and turn on developer mode (top right)
-2. Download <a href="../plain/build/newtab.crx" download>build/newtab.crx</a> (make sure you save it, don't install it straight away - see below)
+2. Download <a href="../plain/build/newtab.crx" download>build/newtab.crx</a> ("Save link as...", don't install it straight away - see below)
3. Drag the file onto the extensions page to install it
Opening the crx file using Chrome's default file handler causes a "CRX_REQUIRED_PROOF_MISSING" error because Chrome now only allows extensions obtained from their store. However, you can drag and drop it onto the extensions page and that seems to bypass the verification. More info [here](https://support.google.com/chrome/thread/3125155?hl=en).
## Building
-For the time being you can run the extension as a local "unpacked" extension, but if you make modifications you may like to make a distributible crx file. You can do this with the included build script - just run `make all` in the root directory.
+For the time being you can run the extension as a local "unpacked" extension, but if you make modifications you may like to make a distributible crx file. You can do this with the included build script - just run `make all` in the root directory. You'll need your own private key in newtab.pem in the root directory (Chrome can generate this from the Extensions page).