Follow the below steps to get salesforce session id using chrome:

1. If you already opened your salesforce org then right click and then click inspect.
2. You will see an Application tab, click on this Application tab and then click on the cookie tab.
3. You would be able to see the salesforce org URL under the cookie tab. Click on this URL which shows your salesforce org URL (For example: https://your_salesforce_basic_url/secur/frontdoor.jsp?sid=your_sid).
4. You will see the sid and it value. Copy & past this URL with your salesforce basic URL. 
5. Now it is done. You can use this URL to login into your salesforce org.

 

 

 

I hope this blog helped you!