If you do not see the Read&Write for Google Chrome purple puzzle piece tabwhen you open Google Docs or Slides or the icon is missing on your Chrome toolbar, you may need to re-enable permissions.
It's also possible that the Read&Write for Google Chrome extension may have been disabled.
Permissions need to be re-enabled
If permissions need to be re-enabled, you will see an orange circle with an exclamation point in the upper right corner of the Chrome browser where the Settings icon with the three dots icon normally appears.
This indicates that an action is required:
Click the orange icon and you’ll see a notice at the top of the menu
(If the toolbar and icons are not appearing and there is no orange icon go to No Orange Icon Appears and Toolbar and Purple Puzzle Icon are Missing)
Click on Read&Write for Google Chrome requires new permissions:
Then click the Re-enable button
You will then see the purple puzzle piece icon for the web toolbar appear next to the Chrome address bar
The purple puzzle piece tab will now also appear in Google Docs and Slides
If No Orange Icon Appears and Toolbar and Purple Puzzle Icon are Missing
Type chrome://extensions or click the Chrome Settings button with the three dots and go to More tools > extensions
Search for (or scroll down and locate) Read&Write for Google Chrome
Move the slider button over to the right to enable Read&Write
If permissions need to be updated, the following dialogue box will appear:
Click the Re-enable button
Read&Write for Google Chrome will now be active
Refresh any web pages that were open to allow the toolbar and the purple puzzle piece icon to appear