I need to browse offline to a website.but it take very long time,about 3 hours.
and I need to sleep so i turn off the computer

The next day, I want to resume. but I recognized,there arent any resume or
pause button. I try to open the project again, but I dont know,wheter its
resuming or start from begginng

how to pause the progress?and how to resume at the other time?