The 35-year-old actor said the microblogging site would take up a lot of time as she finds it difficult to assign captions to her photographs, reported FemaleFirst.
"(Twitter) is just literally too much work. Do you know how long it takes me to come up with a caption? For a photo? I can't come up with a sentence.
"I'd end up trolling myself. I'd be like, 'That sounds dumb. That's a lie'," Moss told Marie Claire magazine.
"The Handmaid's Tale" actor is on Instagram, which she uses as a platform to campaign for causes, such as Planned Parenthood.
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