Looks good but the timer works only with minutes (seconds will be more useful)

My problem is LinkedIn. I want a tab for a group that I follow, refreshed periodically so that I can see new posts. However, the plug-in often updates when I'm in the middle of typing a response, erasing my work. The extension won't work for me unless it only auto refreshes if the tab is in the background so that when I click the tab, content is always current, but if I'm actively using the page, it doesn't refresh and destroy my work. Even better would be detecting that I'm typing on the page and pausing refresh for a few minutes while I'm doing that.