Submitting content on X not possible in Firefox as of March 10 2026.
I can submit posts on X using Chrome, but Firefox, for some reason, has cut off the portion of the posting box that contains the submit button and other edit features. It simply vanished as of March 10 2026.
I have attached screenshots showing FireFox vs Chrome.
I cleared cache and cookies to no avail. I have the latest Firefox version. 148.0 64 bit. Windows 11 operating system.
Выбранное решение
If you happen to use uBlock Origin, might check out https://www.reddit.com/r/uBlockOrigin/comments/1rr3vv8/post_button_disappeared_when_using_twitter/ which indicates a Gen AI Blocklist might be causing it and updating that filter should correct it.
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Seems to be fine here. Firefox 148.0.2 in Windows 10 Pro. I notice in your screenshots that it has "Drafts" in the upper-right. I don't see that on mine. Hmmm..
Выбранное решение
If you happen to use uBlock Origin, might check out https://www.reddit.com/r/uBlockOrigin/comments/1rr3vv8/post_button_disappeared_when_using_twitter/ which indicates a Gen AI Blocklist might be causing it and updating that filter should correct it.
Thanks for the information! I disabled uBlock Origin on Twitter and the issue is resolved. I learned today that Chrome has disabled uBlock Origin altogether.
Glad you got it resolved. I have uBlock Origin enabled on Twitter and can post fine. Just seemed to be an issue with that one filter which I did not happen to have enabled.
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