My history was very old, probably 10+ years. I shrinked everything to the last 3years (1095days), which took very long the first time, firefox was running on 100% for 5-10min. But now it looks good. It is not very transparent how many history entries were deleted, though.

Can we have option for clean the history by some setup time.

GOOD

Zu jedem Topf gibt es Einen DECKEL! (oderETWAnicht?)

This is very easy to use History Cleaner for Firefox with just one-click.