Problem with Scraping process - limitation?

I just tried to use you Web Extension tool.

It is easy to set up but I have a problem with the scraping process.

Everything works fine but when i press several time the refresh button during the scraping process it does not continue with refreshing the data. After 50 rows it does not continue although the process in the background still works. What is the matter and how can I solve this?

There is no need to keep hitting Refresh; the scraper will continue to work regardless. In fact, if you keep doing that, it might slow down the browser or even crash it.