Opinionated by William Johnston

The purpose of this addon is to inform you when a link location is an opinion article. Most popular news sites have opinion blogs, and you don't want to confuse those articles with reporting articles. The addon will add "[Opinionated]" to the text content of every identified URL that links to an opinion article.

Alternatively if an opinion article is not linked, this addon will use a curated list from https://www.allsides.com to indicate the bias of a news source:

1. "[<<]" = Left
2. "[<]" = Lean Left
3. "[<>]" = Center
4. "[<~>]" = Mixed
5. "[>]" = Lean Right
6. "[>>]" = Right

The final place where this addon will look is from Swiss Propaganda Research. This image contains the breakdown from SWPRS, and is merged into the AllSides ratings to fill in blanks.

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AllSides Media Bias Ratings by AllSides.com are licensed under a Creative Commons Attribution-NonCommercial 4.0 International License. These ratings may be used for research or noncommercial purposes with attribution. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.