Some time you see an embedded video stream in your firefox browser and you want to download it. There are several addons, but yozu can also manage without any additional software.
- Enlarge your firefox cache
- open the page with the video
- clear your browser cache
- open a new browser tab and enter
- go back to the tab with video and reload the page
- refresh the tab with the cache overview and locate the largest file (which should be your video)
- copy the shown location to an other browser tab.
- by right clicking , you can save the video