Copy title, URL, selection as Markdown

• Mozilla Firefox: Go to Add-ons for Firefox and install.
• Google Chrome: You have to build and install at your own risk. No store distribution at this moment.

Right click and select:

• when part of the page is selected: Copy Selection as Markdown
• when user context-clicks in the page: Copy Title and URL as Markdown (only available on Firefox)
• when user context-clicks in the link: Copy Link as Markdown (only available on Firefox)

Toolbar button is also available.

Since v0.18.0, rich text (text/html) version of the selection will be copied to the clipboard as well. Almost all of users of this extension might be using plain text editor, but it should be useful for using with Slack.

The add-on has multiple configuration to suit your setup as follows. Set your preference by:

• Firefox:
  1. Click the menu button and choose Add-ons. The Add-ons Manager tab will open
  2. In the Add-ons Manager tab, select the Extensions panel
  3. Click Copy Selection as Markdown and click Preferences tab
  4. Hit Save button on the top to apply changes (no restart required)
• Chrome:
  1. Go to chrome://extension
  2. Click Copy Selection as Markdown and click Details tab
  3. Click Extension options
  4. Hit Save button on the top to apply changes (no restart required)

• Prepend quote (>) to selection
• Include link to source web page in the beginning of copied text
• Enable experimental MathJax support
• Disable link styling (like this (https://example.com) instead of [like this](https://example.com))

• macOS: Command Shift E
• Windows/Linux: Ctrl Shift E

To change shortcut key, click gear icon on top-right and click Manage Extension Shortcuts, or chrome://extensions/shortcuts.

• Enable GitHub Flavored Markdown (strikethrough, tables, and taskListItems) support
• Use img tag for image instead of ![title](url for image)
• Reduce padding spaces for list items
• Replace <> with HTML entities

• Setext

  Heading 1
  =========
  Heading 2
  ---------
  

• ATX (default)

  # Heading 1
  ## Heading 2
  

• Minus (-) (default)

  - one
  - two
  - three
  

• Plus ( )

    one
    two
    three
  

• Asterisk (*)

  * one
  * two
  * three
  

• Indented (default)

          let code = "indented";
  

• Fenced

      ```
      code = "fenced";
      ```
  

• Backticks (```) (default)

      ```
      let code = "fenced";
      ```
  

• Tildes (~)

      ~~~
      let code = "fenced";
      ~~~
  

• Underline (_) (default)

  _Em_
  

• Asterisk (*)

  *Em*
  

• Underlines (__)

  __Strong__
  

• Asterisks (*) (default)

  **Strong**
  

• Inlined (default)

  [Inlined](https://example.com)
  

• Referenced

  [Referenced][1]<br/>
  [1]: https://example.com
  

• Reference (default)

  [Reference][1]
  
  [1]: https://example.com
  

• Collapsed

  [Reference with collapsed style][]
  
  [Reference with collapsed style]: https://example.com
  

• Shortcut

  [Reference with shortcut style]
  
  [reference with shortcut style]: https://example.com
  

• Title Substitution -- line separated texts which will be removed from title text. (supports regular expressions if the line starts and ends with / e.g. /^number:\d$/. Please escape | with \.) If you add - Mozilla | MDN to the textbox, the copied text wil be:
  • From [Add-ons - Mozilla | MDN](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons)
  • To [Add-ons](https://developer.mozilla.org/en-US/docs/Mozilla/Add-ons)
• Embed imgs (.gif, .jpg, .jpeg, .png, and .webp) as base64 -- images will be encoded as base64 text, instead of URL, and added at the end of copied text. Sometime it might fail but useful for backup. See Permissions.

Please read CONTRIBUTING for details.

By default, no add-on can interfere pre-configured domains for security reason. You can configure this behavior at either of

• about:config → extensions.webextensions.restrictedDomains preference. See Configuration Editor for Firefox | Firefox Help for how to change the preference.
• Starting with Firefox 116, you can also control this behavior for this extension in the Add-ons Manager. See Why are some add-ons not allowed on sites restricted by Mozilla? | Firefox Help for how to change the preference.

Default list of restricted domains (See modules/libpref/init/all.js) as of 2023-08-21:

• accounts-static.cdn.mozilla.net
• accounts.firefox.com
• addons.cdn.mozilla.net
• addons.mozilla.org
• api.accounts.firefox.com
• content.cdn.mozilla.net
• discovery.addons.mozilla.org
• install.mozilla.org
• oauth.accounts.firefox.com
• profile.accounts.firefox.com
• support.mozilla.org
• sync.services.mozilla.com

This extension is released under the MIT License. See LICENSE for details.

• Turndown, which does all the heavy lifting from HTML to markdown
• Octicons clippy

The add-on does not store any user data outside of the Firefox user profile. The conversion to markdown is solely done locally. The add-on never send user action/data to any server.

See permissions - Mozilla | MDN for more detail.