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

Content Edit & Blur by Hasan Abo-Shally

Edit, blur, redact, hide and annotate any webpage. Build mockups, protect sensitive details and capture clean screenshots.

4 (4 reviews)4 (4 reviews)
82 Users82 Users
Download Firefox and get the extension
Download file

Extension Metadata

Screenshots
Edit text and select exact page elementsBlur and redact sensitive detailsDraw blur areas anywhere on the pageHighlight, annotate and number each stepSave page-specific or site-wide rules
About this extension
Content Edit & Blur turns any webpage into a private, editable workspace for mockups, screenshots, demos and screen shares.

Edit a headline, swap an image, blur an email address, cover sensitive values with an opaque redaction or annotate a walkthrough without leaving the page.

WHAT YOU CAN DO
  • Edit text directly and replace every matching occurrence
  • Replace page images with files from your computer
  • Blur, hide or redact individual elements
  • Draw blur or solid blocks over any region
  • Annotate with arrows, circles, boxes, highlighter, freehand pen, text notes and numbered steps
  • Move and resize annotations
  • Use the smart picker to select parent or child elements precisely
  • Undo and redo changes
  • Save rules for one page or an entire site
  • Review, rescope, delete, export and import rules
  • Capture screenshots without the extension toolbar or overlays

BUILT FOR REAL WORK

Use it to prepare product mockups, communicate design changes, hide names or account data before sharing, mark up bug reports, create step-by-step guides and clean up pages for presentations.

Blur is useful for visual de-emphasis. For sensitive screenshots, use Redact, which paints an opaque block over the rendered content.

Simple mode keeps the common tools focused. Pro mode reveals redaction, advanced annotations, site-wide scope, the rules panel, export/import and more. Both modes are included.

PRIVACY BY DESIGN

Content Edit & Blur works entirely offline. It does not collect data, use analytics or send page content to external servers. Saved changes remain in local browser storage. Annotations are session-only by default unless you choose Keep after reload.

Open source:
https://github.com/HasanAboShally/web-content-edit-and-blur--browser-extension

Documentation and downloads:
https://hasanaboshally.github.io/web-content-edit-and-blur--browser-extension/
Rated 4 by 4 reviewers
Log in to rate this extension
There are no ratings yet

Star rating saved

5
3
4
0
3
0
2
0
1
1
Read all 4 reviews
Permissions and data

Required permissions:

  • Access your data for all websites

Optional permissions:

  • Access your data for all websites
Learn more
More information
Add-on Links
  • Homepage
  • Support site
  • Support Email
  • Copy add-on ID
Version
2.3.0
Size
217.3 KB
Last updated
3 days ago (Aug 30, 2026)
Related Categories
  • Web Development
  • Appearance
License
Mozilla Public License 2.0
Version History
  • See all versions
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

Download

  • Download Firefox
  • Windows
  • macOS
  • iOS
  • Android
  • Linux
  • All

Latest Builds

  • Nightly
  • Beta

Firefox for Business

  • Enterprise

Community

  • Connect
  • Contribute
  • Developer

Follow

  • Instagram
  • YouTube
  • TikTok
  • Bluesky
  • Podcast
  • 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.