[From HPE online Help](http://uft-help.saas.hpe.com/en/14.00/UFT_Help/Content/Addins_Guide/Chrome_Extension_Setup.htm):
IMPORTANT:
If you have a version of the Functional Testing Agent for Google
Chrome from version 12.00 or earlier installed, you must manually
remove this extension before enabling the new version.
For the most up-to-date list of supported versions of Google
Chrome, see the Unified Functional Testing Product Availability
Matrix.
[HPE online document](http://uft-help.saas.hpe.com/en/14.00/UFT_Help/Content/Addins_Guide/Chrome_Extension_Setup.htm) has the up to date procedure and recommend following.