Markdown Viewer with 30+ Themes, Dark Mode, MathJax, Mermaid diagrams, Syntax Highlighted code blocks

Markdown Viewer - Firefox Add-on | 30+ Themes, Dark Mode, MathJax
Markdown Viewer is a secure and versatile Firefox add-on that allows you to render local and remote markdown files with 30+ themes, dark mode, MathJax formulas, syntax highlighted code blocks, and more. It provides full control over compiler options, settings synchronization, and is free and open source.
Add-on stats
Manifest V3
Weekly download count: 334
Firefox on Android: No
Permissions:
- storage
- scripting
Host permissions:
- file:///*
Size: 2.50M
Email: si*****@outofindex.com
URLs: Website
Full description: See detailed description
Ranking
# 857 ▲ 13
Other platforms
Not available on Android
User reviews
Pros
- Easy to use once set up properly
- Works great with additional Markdown extensions like `mermaid`
- Quick and responsive support from the developer
- Cross-browser functionality (works on both Firefox and Edge)
- Generally does what it promises for viewing Markdown files
Cons
- Does not register .md file extension with Firefox, leading to difficulties opening files
- Requires additional configuration, especially on Linux, to work properly
- Does not support tables in Markdown
- Initial setup can be confusing, especially the instructions for local file access
- Lacks features for setting tab titles based on Markdown titles
Most mentioned
- Needs configuration to open Markdown files properly
- Issues with registration of .md file types
- Does not support Markdown tables
- Developer provides responsive support
- Works well with proper setup or workarounds
User reviews
by 敬念法轮大法好远离瘟疫, 2025-02-15
by Chester, 2025-01-16
by Firefox user 18719343, 2024-12-06
Add-on safety
Risk impact
Markdown Viewer does not require any sensitive permissions.
Risk impact analysis details
- Low Request access to the following domains:
Risk likelihood
We don't have sufficient data to confidently determine the risk likelihood of Markdown Viewer. Use it at your own risk.
Risk likelihood analysis details
- High This extension has low user count. Unpopular extensions may not be stable or safe.
- Low **** ********* *** ******* **** **** * ****** **** ***** ******** *** **** ****** ** ** ****** *** *****
- Low **** ********* *** ***** **** **** * ****** **** ***** ********** *** **** ****** ** ** ****** *** *****
- Good **** ********* *** **** **** *******
Upgrade to see full risk analysis details