In view of the forthcoming breaking changes brought by Google (http://blog.chromium.org/2013/11/p
Required functionality: intercepting downloads.
If possible, expand the functionality to include additional features (based on our Firefox extension: integrate into the context menu of the browser, proceed to download within the browser if the user clicks Cancel in FDM).
Preferably, the plug-in should work in Opera 15+ as well.
The stated budget is approximate, the final sum paid will be based on the number of implemented features.