DataBlur by DataBlur
Blur or redact passwords, emails and customer data on any web page before screen sharing or recording. 100% local, no account.
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About this extension
Blur screen content before you share it. DataBlur hides sensitive data on any web page in real time: passwords, emails, customer names, card numbers, API keys. Blur, redact or hide it right in the browser tab before a screen share, screen recording or screenshot.
MANUAL BLUR
• Blur element: click any text, image, button or form field on the page to blur it
• Blur area: drag to blur any region of the screen
• Blur text: select a passage and blur just those words
• Blur tab title: hide the page title and icon in the browser tab
• Blur similar elements: blur every matching row, cell or card in one click
• Right-click menu: Blur element and Blur text, without opening the toolbar
• Peek: hold Alt (Option on Mac) to look under a blur without removing it
• Remove all blur on the page in one click
THREE BLUR STYLES
• Blur: soft, classic screen blur
• Redact: solid black boxes, so nothing is readable in the recording
• Transparent: the content disappears and the layout stays
Adjust the blur strength with the – and + buttons.
AUTO-DETECT SENSITIVE DATA
One click finds and blurs sensitive information on the page:
• Email addresses and phone numbers
• Credit card numbers, IBANs and US Social Security numbers
• Password fields
• API keys and secrets from the usual cloud, payment and developer platforms, JWT tokens, private keys and database connection strings
• Crypto wallet addresses
• Optional: money amounts, dates of birth and addresses
Pick the categories you want to blur.
KEYWORD BLUR
List words, names, client IDs or /regex/ patterns once, and they are blurred on every website, embedded frames included.
DEMO MODE
Turn it on with Alt+Shift+D, or let it switch on by itself when you start sharing your screen from the browser. Demo mode blurs personal data, your keywords, tab titles and DataBlur's own controls. It also holds each new page blurred until it has been checked. Stop it any time; your saved settings stay as they were.
PROFILES
Save the blurs you set up for one site or for all sites under a name, one per client or per demo. Restore them in one click before the next call.
BLURS THAT STAY
Blurs are saved per site or per page and come back when you return, so a dashboard you demo every week is ready before you share.
TOOLBAR AND KEYBOARD SHORTCUTS
• Alt+Shift+T: show or hide the toolbar
• Alt+Shift+A: auto-detect and blur sensitive content
• Alt+Shift+D: demo mode on or off
• Alt+Shift+R: remove all blur on the page
• Blur text: assign your own key in about:addons → gear icon → Manage Extension Shortcuts
MADE FOR
• Sales demos and client presentations: screen sharing with real customer data
• Tutorials, courses and screen recordings without hours of video editing
• Support and onboarding calls inside admin panels and CRMs
• Webinars, live streams and screenshots for docs, tickets and social posts
• Developers sharing a cloud console, a dashboard or an .env file open in the browser
PRIVACY BY DESIGN
• Blurring and detection run on your device
• Page content, URLs and what you blur are never sent anywhere
• No account needed
• Anonymous usage stats can be turned off under Settings → Help improve DataBlur
• Turn DataBlur off for specific websites under Settings → Disabled sites
WORKS IN
Firefox 140 or newer on desktop. Firefox for Android is not supported. A version for Chrome, Edge and Brave is also available. DataBlur blurs web pages in your browser, so it works with any screen recorder or video-call app that captures the browser.
Questions or ideas? Write to support@datablur.app or use Contact support in the extension popup.
MANUAL BLUR
• Blur element: click any text, image, button or form field on the page to blur it
• Blur area: drag to blur any region of the screen
• Blur text: select a passage and blur just those words
• Blur tab title: hide the page title and icon in the browser tab
• Blur similar elements: blur every matching row, cell or card in one click
• Right-click menu: Blur element and Blur text, without opening the toolbar
• Peek: hold Alt (Option on Mac) to look under a blur without removing it
• Remove all blur on the page in one click
THREE BLUR STYLES
• Blur: soft, classic screen blur
• Redact: solid black boxes, so nothing is readable in the recording
• Transparent: the content disappears and the layout stays
Adjust the blur strength with the – and + buttons.
AUTO-DETECT SENSITIVE DATA
One click finds and blurs sensitive information on the page:
• Email addresses and phone numbers
• Credit card numbers, IBANs and US Social Security numbers
• Password fields
• API keys and secrets from the usual cloud, payment and developer platforms, JWT tokens, private keys and database connection strings
• Crypto wallet addresses
• Optional: money amounts, dates of birth and addresses
Pick the categories you want to blur.
KEYWORD BLUR
List words, names, client IDs or /regex/ patterns once, and they are blurred on every website, embedded frames included.
DEMO MODE
Turn it on with Alt+Shift+D, or let it switch on by itself when you start sharing your screen from the browser. Demo mode blurs personal data, your keywords, tab titles and DataBlur's own controls. It also holds each new page blurred until it has been checked. Stop it any time; your saved settings stay as they were.
PROFILES
Save the blurs you set up for one site or for all sites under a name, one per client or per demo. Restore them in one click before the next call.
BLURS THAT STAY
Blurs are saved per site or per page and come back when you return, so a dashboard you demo every week is ready before you share.
TOOLBAR AND KEYBOARD SHORTCUTS
• Alt+Shift+T: show or hide the toolbar
• Alt+Shift+A: auto-detect and blur sensitive content
• Alt+Shift+D: demo mode on or off
• Alt+Shift+R: remove all blur on the page
• Blur text: assign your own key in about:addons → gear icon → Manage Extension Shortcuts
MADE FOR
• Sales demos and client presentations: screen sharing with real customer data
• Tutorials, courses and screen recordings without hours of video editing
• Support and onboarding calls inside admin panels and CRMs
• Webinars, live streams and screenshots for docs, tickets and social posts
• Developers sharing a cloud console, a dashboard or an .env file open in the browser
PRIVACY BY DESIGN
• Blurring and detection run on your device
• Page content, URLs and what you blur are never sent anywhere
• No account needed
• Anonymous usage stats can be turned off under Settings → Help improve DataBlur
• Turn DataBlur off for specific websites under Settings → Disabled sites
WORKS IN
Firefox 140 or newer on desktop. Firefox for Android is not supported. A version for Chrome, Edge and Brave is also available. DataBlur blurs web pages in your browser, so it works with any screen recorder or video-call app that captures the browser.
Questions or ideas? Write to support@datablur.app or use Contact support in the extension popup.
Rated 4.2 by 5 reviewers
Permissions and data
Required permissions:
- Access browser tabs
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
Optional data collection, according to the developer:
- Technical and interaction data
More information
- Add-on Links
- Version
- 3.9.4
- Size
- 493.79 KB
- Last updated
- 21 hours ago (Oct 20, 2026)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
- Add to collection
The developer of this extension asks that you help support its continued development by making a small contribution.