But Hubert, who has said before that she does not get along with Will, insists her slam has nothing to do with bad blood.
She told CBS Chicago that she spoke out because she believed the Smiths were being hypocritical.
"I've not seen them stand up for very much at all, but when it comes time to I didn't get my nomination, then I'm screaming," Hubert said.
Hubert added, "If you want to not go, then don't go but you can't ask other actors just to jeopardize their lives and their livelihood."
The actress asked on Tuesday why Jada was speaking instead of Will, who was snubbed for his role in "Concussion."
She told CBS Chicago, "It's about either you stand up all the way or you just be quiet. If you're going just to win an award, then you're in the wrong business."
In the video Hubert posted, she said, "I find it ironic that somebody who has made their living and has made millions and millions of dollars from the very people that you're talking about boycotting just because you didn't get a nomination, just because you didn't win? That's not the way life works, baby."
Perhaps this isn't about bad blood, but Hubert has trashed Smith in the past. She told the Insider in 2013 that Smith did "some heinous, horrible things to me -- they were like bad kids, Will and Alfonso [Ribiero], especially Alfonso. He said that I was crazy and nobody wanted to go to lunch with me."