I, too, work for a school and was hoping ESR v-13 would remain the static workable version until it fails to deliver flash content because of improvements to core -strictly necessary- development. Looking over the actual blocklist I'd rather not disable everything '' is designed to do, but I still would like to single out Adobe Flash because their ESR v-13 continues to be updated more frequently that I would have imagined for the reason of this 'Extended Service Release' is it possible, please, to edit the blocklist programatically (batch)? For example: I installed Flash v-ESR 13.0.0.264 on 01/29 got warnings for v-13.0.0.269 around 02/26 -which also makes me wonder if I should have gotten a series of 5 warnings for (v-265-269) in about a mont's time.

99% of the time, the update is not necessary. This is just not feasible with as many computers as we support. The problem is, Firefox thinks that we HAVE to update Flash Player every time there is a new release. We run a program that does not allow students to update programs or make any other changes.

Centos firefox flash plugin out of date