For unknown reasons Google have removed 23++ from the Chrome web store, saying that it doesn’t comply with their policies on spam (what?!).
Until this is resolved new users will need to install the extension manually as follows:
- Right-click on this link and select Save Link As…
- Open the extensions page in Chrome by navigating to Tools -> Extensions in the menu
- Click on the arrow next to the download on the download bar and select Show in folder
- Drag the file (named 23pp-22.214.171.124.crx) into Chrome, making sure the extensions tab is still selected
- Confirm the installation by clicking Add
Will post again if/when this gets sorted…