FF 54,55 not closing TCp ports after i close videos.
notebook i5, win7 sp1 full update; after latest updates firefox starting to show high internet activity. İ closed all the updates for firefox. For example i go to youtube main page over 100 TCP connection i see on firewall monitor for firefox. Even on main page i see over 20 mb data in bytes in section. İ open and close 3 videos and i see high internet usage by firefox. After 5-10 minutes, internet activity by firefox still exists even though i ve 2 tabs open with no internet activity involved. When i checked 2 minutes ago over 150 mb data downloaded and still downloading.