Looking for logging into the Salesforce Extension site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Salesforce Extension site. After that you can login as usual with your login credentials.
https://chrome.google.com/webstore/detail/salesforce-logins-by-syne/mhpbcjokcjoldhjcapkcmfkkkgepapgm
https://chrome.google.com/webstore/detail/forcecom-logins/ldjbglicecgnpkpdhpbogkednmmbebec
https://chrome.google.com/webstore/detail/one-click-salesforce-logi/ckcjggdilfimmjnjmldgbbekigobcijn
https://www.synebo.io/blog/Salesforce_Logins_by_Synebo
https://addons.mozilla.org/en-US/firefox/addon/one-click-salesforce-login/
https://addons.mozilla.org/en-US/firefox/addon/loginforce/
https://help.salesforce.com/apex/HTViewHelpDoc?id=lightning_for_gmail_user_setup.htm
https://www.salesforceben.com/ultimate-salesforce-chrome-extensions-2017/
https://organizer.enree.co/faq.html
https://www.youtube.com/watch?v=pMHjUzlur7g
https://idealistconsulting.com/blog/top-5-salesforce-chrome-extensions
https://support.salesloft.com/hc/en-us/articles/115005924706-Salesforce-User-Guide
https://marketplace.visualstudio.com/items?itemName=salesforce.salesforcedx-vscode-core