Twitter France public affairs chief Audrey Herblin-Stoop said the company would continue to work closely with the government to build a safer Internet and fight against illegal hate speech, while protecting an open internet, freedom of expression and fair competition.
Justice Minister Nicole Belloubet told parliament the law will help reduce online hate speech.
For other "manifestly illicit" content, companies such as Facebook, Twitter, YouTube, Instagram, and Snapchat will have 24 hours to remove it, according to the law, which sets up a specialised digital prosecutor at the courts and a government unit to observe hate speech online.
Social networks and other online content providers will have to remove paedophile and terrorism-related content from their platforms within the hour or face a fine of up to 4 percent of their global revenue under a French law voted in on Wednesday.
She said it was a top priority to ensure public debate was civil, adding Twitter's investments in technologies that signal hate speech will reduce the burden on users of having to call out illicit content.