No.
Frogs should not be kept with fish. If the fish get sick, any medication used to treat them will usually kill the frog. Frogs also eat small fish, shrimp and snails. Some fish will pick on the frog.
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On a side note, you should check the pH and GH of your tank water. You have guppies, platies and mollies that require hard water with lots of mineral content, and neons and a few other fishes that need soft water with very little mineral content. Having the two groups in the same tank can shorten the lives of the fish if the water chemistry (pH, GH & KH) is wrong for them.
The GH (general hardness), KH (carbonate hardness) and pH of your water supply can usually be obtained from your water supply company's website or by telephoning them. If they can't help you, take a glass full of tap water to the local pet shop and get them to test it for you. Write the results down (in numbers) when they do the tests. And ask them what the results are in (eg: ppm, dGH, or something else).
Tetras, barbs, gouramis, rasbora, Corydoras and small species of suckermouth catfish all occur in soft water (GH below 150ppm).
Livebearers (guppies, platies, swordtails, mollies) occur in medium hard water with a GH around 200-250ppm.
If you have very hard water (GH above 300ppm) then look at African Rift Lake cichlids or use distilled or reverse osmosis water to reduce the GH and keep fishes from softer water.