pfSense

Thanks, change works regarding hiding the delete button when a package uses the 'plugin_certificates' function to report used certificates.

With regard to 'speed' it might improve performance to 'cache' the $certificates_used_by_packages variable during building the certificate page if users have a lot of certificates there. Currently its calling every package again and again for every certificate, while the package returns all used certificates in a array every time. (I havent tested how many packages & certificates & package configuration are needed before having a noticeable effect.)

It would be nice to show which packages are using the certificate though. As currently the 'In Use' column can be empty while the delete button is hidden. Depending on the number of packages installed and if someone is taking over a preexisting configuration that would help them find the right location. Perhaps even use the 'usedby' attribute to show additional information provided by the package in a popup window?