Easy Checkbox Checker

This extension would toggle the checked status of all checkboxes between the first and second clicked checkbox

This extension would toggle the checked status of all checkboxes between the first and second clicked checkbox. Usage Instruciton: 1. Click on the extension icon from the browser toolbar 2. select the beginning and ending of the list of checkboxes to check or uncheck 3. keep selecting like step 2 or click the icon again to exit the selection mode Note： If the extension is not working after a click, try disabling all other extensions,try again, and reenabling them. There is a common error where the background could not establish the connection to content script. After some research, i think this is the best approach available. Will keep tuning it and make a fix once a better one is found.