I wanted to add a Google Adsense plugin in my wordpress blog. I installed it through my WordPress network and I can see that the plugin is available in “wp-content/plugins” folder but somehow it is not visible when go to “Network Admin” > Plugins. I checked on individual blog plugin list but it was not available there either. If I try to edit the plugin files, it is available for edit which is kind of strange.
After pulling my hairs for couple of minutes, I suddenly remembered one thing and it is to Disable Adblock Plus for all the (sub)domains for which I am expecting to view Google Adsense (or Google Publisher) plugin in a plugin list.