A Flarum extension. Warn before necrobumping old discussions.
Necrobump (verb):
To revive a long dormant forum thread by adding a new post, thus bringing it to the top of the forum list. Often a tactic of trolls attempting to control a forum.
composer require fof/prevent-necrobumping:"*"composer update fof/prevent-necrobumpingConfigure the extension in the admin panel under Extensions → Prevent Necrobumping:
- Days Until Discussion Considered Inactive: Set the number of days after which a discussion is considered inactive (default: 30)
- Show "Start New Discussion" Prompt: Display a suggestion to start a new discussion when users attempt to reply to inactive discussions
If you have the flarum/tags extension installed, you can configure different inactivity thresholds for specific tags. When a discussion has multiple tags with different thresholds, the shortest period applies.
You can customize the alert messages and prompts shown to users when they attempt to reply to inactive discussions. The extension provides the following translation keys:
fof-prevent-necrobumping:
forum:
composer:
inactive_discussion_alert:
title: The last reply to this discussion was {time}.
description: Consider whether your reply adds new value or if the topic has already been resolved.
cta: Consider starting a fresh discussion if you have a new question or perspective.
cta_button: => core.ref.start_a_discussion
confirmation: I understand this discussion is inactive, but my reply is relevant.
error: This discussion is too old to reply to.fof-prevent-necrobumping:
admin:
settings:
general_heading: General Settings
days_label: Days Until Discussion Considered Inactive
days_help: Mark discussions as inactive after this many days since the last post. Set to <code>0</code> to disable by default.
show_discussion_cta_label: Show "Start New Discussion" Prompt
show_discussion_cta_help: Display a suggestion to start a new discussion when users attempt to reply to inactive discussions.
tags_title: Tag-Specific Settings
tags_help: Override the global inactivity threshold for specific tags. Leave empty to use the default. When multiple tags have different values, the shortest period applies.
tags_placeholder: DefaultYou can customize these translations in two ways:
-
Using FoF Linguist (Recommended)
Install the FoF Linguist extension to manage translations directly from your admin panel:
composer require fof/linguist
Then navigate to Admin → Extensions → Linguist to edit the translation keys listed above.
-
Using Language Packs
If you're using a language pack, you can submit translation updates to the language pack repository. For example:
- Flarum Language Packs
- Create a pull request with your translations for the keys above
An extension by FriendsOfFlarum, commissioned by webdeveloper.com.

