Firefox Browser Add-ons
  • Extensions
  • Themes
    • for Firefox
    • Dictionaries & Language Packs
    • Other Browser Sites
    • Add-ons for Android
Log in
Preview of Custom Element Counter

Custom Element Counter by Magoyor

Count any DOM elements on any website using CSS selectors or XPath. Background auto‑refresh, toolbar badge, shadow DOM support.

0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Toolbar badge with live count (zoomed)Popup interface showing element count
About this extension
This add‑on lets you count DOM elements on any webpage using a CSS selector or an XPath expression.

Features:
- Count elements with CSS selector or XPath
- Auto‑refresh in the background with adjustable interval
- Toolbar badge shows the count (0–999, then 1k‑99k, then ∞)
- Optional Shadow DOM traversal (needed for modern web components)
- Save up to 5 presets for quick access
- Works on all websites – no data collection, no external requests

⚠️ No maintenance: This add‑on was created for personal use and is published as‑is. I do not provide updates, bug fixes, or support. Use at your own risk.

Source code: https://github.com/Magoyor/custom-element-counter-addon
Rated 0 by 0 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
0
4
0
3
0
2
0
1
0
No reviews yet
Permissions and data

Required permissions:

  • Access your data for all websites

Data collection:

  • The developer says this extension doesn't require data collection.
Learn more
More information
Add-on Links
  • Homepage
  • Copy add-on ID
Version
1.2.0
Size
15.56 KB
Last updated
4 days ago (May 13, 2026)
Related Categories
  • Web Development
License
MIT License
Version History
  • See all versions
Tags
  • user scripts
  • word counter
Add to collection
Report this add-on
Go to Mozilla's homepage

Add-ons

  • About
  • Firefox Add-ons Blog
  • Extension Workshop
  • Developer Hub
  • Developer Policies
  • Community Blog
  • Forum
  • Report a bug
  • Review Guide

Browsers

  • Desktop
  • Mobile
  • Enterprise

Products

  • Browsers
  • VPN
  • Relay
  • Monitor
  • Pocket
  • Bluesky (@firefox.com)
  • Instagram (Firefox)
  • YouTube (firefoxchannel)
  • Privacy
  • Cookies
  • Legal

Except where otherwise noted, content on this site is licensed under the Creative Commons Attribution Share-Alike License v3.0 or any later version.