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

OG Previewer by DAVID POWER

Instantly preview how your page looks when shared on Twitter, LinkedIn, Slack, Discord and iMessage. Preview for OpenGraph meta tags. Works on localhost.

Some features may require paymentSome features may require payment
0 (0 reviews)0 (0 reviews)
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
View history of previewed pages.See the raw data from your page.Validate your page's output to social media.Preview your page's output to social media.Output previews to html file.
About this extension
OG Previewer shows you exactly how your web page will appear when shared on social platforms:
✦ Preview cards for Twitter/X, LinkedIn, Slack, Discord, and iMessage
✦ Preview OpenGraph meta tags.
✦ Works on localhost — no need to deploy just to check your meta tags
✦ Validation checklist catches missing tags, wrong image sizes, and truncation issues
✦ Dark and light mode
✦ History of recent checks
✦ Export previews as screenshots

Stop deploying blind. See what your users will see.
One-time purchase. No subscription. 5 activation's per key.
Get your license key at https://teamdash.gumroad.com/l/clnezv
Rated 0 by 0 reviewers
Sign 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
  • Support Email
Version
1.0.0
Size
43.23 KB
Last updated
4 days ago (Feb 26, 2026)
Related Categories
  • Web Development
  • Appearance
  • Social & Communication
License
All Rights Reserved
Version History
  • See all versions
Tags
  • dark mode
  • facebook
  • reddit
  • social media
  • twitter
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.