There have been multiple accounts created with the sole purpose of posting advertisement posts or replies containing unsolicited advertising.
Accounts which solely post advertisements, or persistently post them may be terminated.
Octopus1348 , 9 days ago Create a new Firefox profile, set it as default, then restart Firefox and see if the problem still persists.
Create a new Firefox profile, set it as default, then restart Firefox and see if the problem still persists.