Collabspot Classic for Gmail is currently available for Chrome web browser only. To check which version of CRM does Collabspot support, please check this link

Collabspot Connect is only available for SugarCRM that supports the following email client. 

Google Chrome - Gmail Connect extension

Outlook plugin
Clients: Outlook 2016 for PC
Servers: Microsoft Office 365

Below is a list of supported Outlook desktop versions.

Outlook Cloud add-in
Clients: Outlook 2016 for PC, Outlook on the Web, Outlook for Mac 2016
Servers: Microsoft Office 365

Not using Chrome to browse the Internet?  Not a problem, you can download Chrome browser for free here.