Feed Preview is a Firefox Addon which indicates the availability of RSS or Atom feeds in the browser's URL bar and renders a previews of feeds.


Screenshot of a preview of a RSS feed
Screenshot of the feed indicator and feed selection popup menu
Screenshot of a preview of a RSS feed with enclosed media files


The latest version of Context Web Search is available from the Mozilla Add-ons for Firefox Website.

The current development version is available from its source code repository.


2019-01-23: Feed Preview 5

  • Use human-readable file size units
  • Allow feed reader addons to subscribe to the currently viewed feed
  • Use a more compact style for feed entry content
  • Add option to expand feed entries by default
  • Fix XPath query syntax
  • Add Dutch translations
  • Open links within feed content in a new tab
  • Fix selector for rel attributes

2018-12-16: Feed Preview 4

  • Use seperate grey icon for the page action

2018-12-13: Feed Preview 3

  • Add support for RSS 1.0 feeds
  • Fix parsing the description of RSS 0.9 feeds
  • Add support for enclosures in Atom feeds
  • Support feeds served as text/xml
  • Add support for Atom 0.3 feeds
  • Properly handle non-text content in Atom feed elements

2018-12-08: Feed Preview 2

  • Add preset with common web-based feed readers
  • Implement feed subscription for web-based feed readers
  • Simplify the hint shown if there are no entries
  • Improve visual appearance
  • Alternatively use Atom links without the rel attribute
  • Create feed previews using a stream filter
  • Handle feed entry content normalization with a setter
  • Remove unused parameter from xpathQuery and rename functions

2018-10-04: Feed Preview 1

  • Show a hint if the feed has no entries
  • Initial revision

News Feed



A feed icon in the browser's URL bar indicates whether there are RSS and/or Atom feeds available for the currently displayed page. Click on the icon in order to open a menu containing the titles and types of available feeds. Select a feed from this menu in order to render a preview of that feed. Navigating to an Atom or RSS feed will also render a preview.


Please send any feedback, translations or bug reports via email to guido+feed-preview@berhoerster.name

Bug Reports

When sending bug reports, please always mention the exact version of the addon with which the issue occurs as well as the version of Firefox and the operating system you are using and make sure that you provide sufficient information to reproduce the issue and include any error messages.


Except otherwise noted, all files are Copyright (C) 2018 Guido Berhoerster and distributed under the following license terms:

Copyright (C) 2018 Guido Berhoerster guido+feed-preview@berhoerster.name

This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0. If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.