What to do when firefox extension installation is failed
I have just installed DownThem All, first try it was failed, second try still failed it shows:
Firefox try to download the .xpi files and showing that it was a BIN Files. I then searching for a while on the internet and found mozilla zine page.
Finally i know it’s because the cache’s capacity is full, so i have to make it void first by clicking Edit > Preferences, opening Advanced tab then clicking the Clear Now button on Cache group box.
