Addon-Plugins are not loading on first run of the upgraded Firefox

In our addon we have two plugins and we noticed Firefox is not loading those plugins on first run after Firefox upgrade(eg: from 4.0.1 to 5.0). We noticed plugins ar开发者_开发技巧e loading if we fire "about:plugins" on first run. What I am doing wrong here? Can anyone help?

Does it happen with any plugins or just the ones you've developed? If it's an issue with all plugins (but only when packaged in an add-on), file a bug report, then try to get someone in #developers on irc.mozilla.org or mozilla.dev.platform to look into it.