Marker
By: robin-rpr
With this extension you can Draw and Highlight on any Website. It saves your drawings on your Browser privately and lets you modify the Pen, like changing the Opacity and Size, or Erase and Save as Image.
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Features & Capabilities
User Growth & Download Statistics
- By:
- robin-rpr
- Daily users:
- 1,205 3
- Rating:
- 3.88 (17)
- Version:
- 1.5.2 Last updated: 2022-10-22
- Version code:
- 5475373
- Creation date:
- 2022-10-07
- Risk:
- Very low risk impact Low risk likelihood
- Permissions:
- Size:
- 630.08KB
- Email:
- *****@linux.com
- URLs:
- Website
- Full description:
- See detailed description
- Source:
- Firefox Add-ons Store
- Data ingested on:
- 2026-06-17
- Compare stats and ranking:
-
Ranking
For Developers
Contact the developer
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User Reviews
Users praise Marker for its clean UI, ease of use, and strong value for teaching/presentations and quick in-browser screenshot annotations. Multiple reviews note good customization of colors, opacity and pen size. Repeated criticisms request a true highlighter mode, more annotation tools (text, stamps, straight lines, thinner pens), and improved performance on low-end machines. Pros
- Clean, sleek and user-friendly UI (easy to use)
- Very useful for teaching, presentations and quick screenshot annotations
- Customizable drawing options (colors, opacity/transparency, pen size and color presets)
- Reliable basic drawing tools that work well across most pages
Cons
- No dedicated highlighter/transparent highlighting mode (cannot truly highlight text)
- Higher CPU/resource usage — can lag on older/outdated computers
- Limited advanced annotation features: no text mode, stamps/symbols, constrained straight-line drawing or very thin pen sizes
Recent reviews
Does almost everything I ask for:
- Draws on the screen
- Allows you to change the screen behind the drawing while leaving the drawing on the screen
- Has convenient keyboard shortcuts
Literally the only thing I wish it would have is the option to add a shadow (ideally also a customizable color) behind the marker so that it shows up easier on a variety of website backgrounds. Otherwise, this is extremely useful for virtual teaching.
by Fi*****, 2025-08-26
by 远离*****, 2025-03-28
by 天灭*****, 2025-02-13
Is Marker Safe?
Risk impact
Risk impact measures the level of extra permissions an extension has access to. A low risk impact extension cannot do much harms, whereas a high risk impact extension can do a lot of damage like stealing your password, bypassing your security settings, and accessing your personal data. High risk impact extensions are not necessarily malicious. However, if they do turn malicious, they can be very harmful.
Marker does not require any sensitive permissions.
Risk impact analysis details
Risk likelihood
Risk likelihood measures the probability that a Firefox add-on may turn malicious. This is determined by the publisher and the Firefox add-on reputation on Firefox Add-ons Store, the amount of time the Firefox add-on has been around, and other signals about the Firefox add-on. Our algorithms are not perfect, and are subject to change as we discover new ways to detect malicious extensions. We recommend that you always exercise caution when installing a Firefox add-on.
Marker has earned a fairly good reputation and likely can be trusted.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
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