When i browse certain forums to read alot (then i mean alot, like 4-8 hours of new topics to read for me)
In firefox / chromium, i use an auto reload tab addon.
I would like to suggest a function when you right click a tab and select auto reload the page in x/y/z intervals, random between x and z, or own set timer in seconds.
In my opinion, if i navigate away from current url, the timer stops
Reason i auto reload alot, is when i have to step away for a time, i dont want a new cookie to be set so i lose what i have read or not, which happens if i dont reload one of the pages for 15 or something minutes.