If you are using HubSpot Sales with Chrome and are noticing notifications freezing on your desktop, you may need to restart the HubSpot Sales extension by clicking here.
If you are still seeing an issue, the best next course of action is to completely close out of Chrome and then re-open Chrome.
Alternatively, if you are on a Mac, you can enter fullscreen mode and then exit fullscreen to see if the notifications are removed. This can be done by clicking the green circle in the upper-left hand corner of your Chrome window.
If you are still seeing an issue, you may need to restart your computer in order to remove the frozen notification.