I suggest you install addblocker in the firefox add-ons. On Sat, 2 Apr 2011, Jan de Groot wrote: > On Sat, 2011-04-02 at 12:15 +0530, Partha Chowdhury wrote: > > My ISP is running a transparent proxy server on port 80 as I found out > > from this thread > > > > http://mailman.archlinux.org/pipermail/arch-general/2011-March/019172.html > > > > Now from last two or three days, I keep getting pop-up ads from a > > particular domain on every website i go to - even on text only websites > > ! If i choose another proxy server in firefox , then that does not > > appear on any site. But i normally connect to internet, that specific > > pop-up to a very particular website appears on every single page. If I > > install adblock plus in firefox, then of course no ads are displayed. > > > > So is it possible that my ISP is serving that ad by intercepting > > incoming http traffic ? > > Yes, proxyservers can intercept pages and modify them. I used to have a > transparent squid proxy that would filter ads and replace them with a > 1x1px transparent pixel. > If you're paying for this internet line, I would suggest to switch to a > different provider. Inserting ads in HTTP pages for a connection that is > being payed for is not-done. > >
