If you have been using Chrome to browse the web, you may have sometimes experienced problems, such as hanging websites or program crashes. This may occur very rarely (say once a year), so it may not be a problem during normal usage of Chrome. When Content Grabber uses Chrome to browse a website, it may access more web pages in a few hours than you access in a year, so stability issues are magnified significantly.
Configure an Action command to use a specific web
If you want an agent to use the HTML Parser by default, then you can set the web browser type on the Agent Settings > Browser > HTML Parser: