Cook rice noodles according to package OR place in dish, pour boiling water to cover and allow to soften for 15 minutes. Drain thoroughly.
In the meantime, cut tofu, mango, cucumber and avocado into thin slices.
Fill a wide, shallow dish with warm water to soak rice wrappers in.
Assemble rolls one at a time. Start by soaking rice wrapper in warm water until softened (this will only take a few seconds.) Place a slice or two of tofu, mango, cucumber and avocado in middle of wrapper, about 1/3 of the way from the bottom. Top with a small handful of rice noodles. Sprinkle with a large pinch of basil and cilantro. Roll the spring roll as you would a burrito.