I use F-secure Computer Protection, and I also use the Chrome extension.
Recently, the page display of Google's search results is sometimes erratic.
A large blank space appears as shown in the image below.
I think it is an F-secure problem because I checked it by turning it On/Off in my browser with only the F-secure extension installed.
Also, my colleague is facing the same problem. And, I have the same problem with FireFox.
This seems to occur only with Japanese emphasis snippets.
I think you can see it with the following URL.
https://www.google.com/search?q=%E8%AB%96%E7%90%86%E5%89%8A%E9%99%A4
I hope this problem will be fixed soon!
Version
Browsing protection by F-Secure: 1.0.1338
Chrome version: 91.0.4472.114
F-Secure Computer Protection: 2021-06-28_05
OS: macOS 10.15.7
