Salesforce Lightning to Classic URL Chrome Extension

 Allows Salesforce Classic only users to paste Lightning URLs and be properly redirected to the classic url instead of the Access Denied screen.  

To test, you would need to login as a classic only user.  If you have lightning access, just switching to classic wont recreate the Access Denied page.
This extension works on any object as long as the URL as a SF 18 digit ID in it. 
Ex:   https://mydomain.lightning.force.com/lightning/r/Opportunity/0062G12345g8FK9QAM/view  will get redirected to https://mydomain.my.salesforce.com/0062G12345g8FK9QAM 

*NOTE: URLs that dont have an 18 digit ID like the Opportunities Homepage (https://mydomain.lightning.force.com/lightning/o/Opportunity/list?filterName=Recent) will still fail because the extension cant know what the correct url to go is: https://mydomain.my.salesforce.com/006?fcf=00B12345000uLr4  <-- Opportunities Recent list page   (No one should really be sharing these kinds of page links anyway but Im sure it happens)    

How to test: (before installing plugin (if already installed turn it off via the extensions chrome page - chrome://extensions/ )
 - Navigate to a specific lightning detail record page
 - Copy the lightning URL from the browser
 - Login as a classic only user 
 - Paste lightning URL > Enter
 - This should result in the Access Denied page
 - Install / turn on extension
 - Paste lightning URL > Enter
 - Should be redirected to Classic record page

How to install Salesforce Lightning to Classic URL chrome extension in chrome Browser

You can Follow the below Step By Step procedure to install the Salesforce Lightning to Classic URL Chrome Extension to your Chrome Web browser.

• Step 1: Go to the Chrome webstore https://chrome.google.com/webstore or download the extension Salesforce Lightning to Classic URL Chrome Extension Download from https://pluginsaddonsextensions.com
• Step 2: Now search for the Salesforce Lightning to Classic URL in Chrome Webstore Search and click on the search button.
• Step 3: click on the Salesforce Lightning to Classic URL Chrome Extension Link
• Step 4: in the next page click on the Add to Chrome button to Download and Install the Salesforce Lightning to Classic URL extension for your Chrome Web browser .