In the main Kaspersky window, click the "Settings" icon (an image of a gear), and select the Protection
settings.
Disable the item named Web Anti-virus
. Kaspersky will bug you about it a bit, so when given the option, select "Ignore" to prevent further messages.
Depending on your browser, Kaspersky may have installed several add-ons. Disable/remove them if you like, though they should be inane now that the main component has been disabled.