Submitted a report - https://reports.adblockplus.org/efc5759 ... 21499f4b09
I have noticed over the last day or so that Adblocker is not activating as soon as firefox is started , it is loading up firefox then about 30 secs later only then is adblocker showing up in the corner of the toolbar at the bottom , the problem has only started over the last day or so .
Hopefully you can look into this.