Well, it's sad you want to uninstall us... but it if you really want to uninstall Mailtrack, please, follow these instructions:
1) In Chrome, click More (the 3 vertical dots in the top right-hand corner of the screen).
2) Go to More tools > Extensions.
3) Check to see if Mailtrack is still listed among the installed extensions and if necessary remove it by clicking on the remove option.
Once you've done this, if you close then re-open Chrome this should complete the uninstall process.
Revoke Mailtrack permissions for your Google Account
After uninstalling the Mailtrack extension, you can remove Mailtrack's permission to access your Google Account here
Delete your Mailtrack account
If you need your Mailtrack account to be completely deleted from our servers, please, follow these instructions.