Hi Md Emonuzzaman,
If you leave My Feed tab open in your browser for a while, a notification will show if there are any new jobs:
If you click on that notification, new jobs will show in your feed.
If I use auto refresh extension/tools, Will my upwork account be a problem? Upwork will be a violation of the terms and conditions. Because upwork posts jobs every minute. I'd like to see those.
Please check out attached file for the more clarify.