I'm using a whole bunch of myself-written blocking rules for AdBlock Plus in Firefox (they are not overly complicated; new versions of ABP provide quite advanced syntax, but I'm not using it much).
I sometimes use Opera though. There's built-in blocking mechanism in Opera and there are also third-party add-ons to do so.
I want to export my Firefox block list to Opera (whatever it's ad-blocker).
Is there any tool available capable of doing so? I've googled around a bit, but without success.
Finally, I could think of writing such tool by myself, but this requires some time to learn Opera's adblocking syntax and the time to write the tool, so I want to avoid it and not reinvent the wheel if there's such tool available somewhere.