Install from the Google Add-on Store
first step: Enter the official website, click 'Chrome plugin'
Step 2: Click 'Add to Chrome'
Step 3: Click 'Add extension'
Now you can start using it! (Show quick access on the right side of the webpage)
Install via Zip archive
first step: Enter the official website, click 'Chrome plugin package download', orDirect Download
Step 2: Find the crx file you downloaded in the previous step
Step 3: Open the Google plugin extension management page 1 to 2
Step 4: Drag the downloaded crx file directly to the management page of the Google plug-in extension and agree to install the plug-in
Now you can start using it! (Show quick access on the right side of the webpage)