https://github.com/cphyc/thunderbird_remove_safelinks

Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.
https://github.com/cphyc/thunderbird_remove_safelinks

email thunderbird-extension

Last synced: 6 days ago
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Replace URLs which have been rewritten by Office 365 Advanced Threat Protection with the original URL.

• Host: GitHub
• URL: https://github.com/cphyc/thunderbird_remove_safelinks
• Owner: cphyc
• Created: 2020-10-06T17:21:31.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2021-05-18T12:50:53.000Z (over 3 years ago)
• Last Synced: 2023-08-04T22:56:58.201Z (over 1 year ago)
• Topics: email, thunderbird-extension
• Language: JavaScript
• Homepage: https://addons.thunderbird.net/en-GB/thunderbird/addon/safelink-removal/
• Size: 225 KB
• Stars: 10
• Watchers: 4
• Forks: 3
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Thunderbird remove safelinks

A number of e-mail providers use a "URL mangling" service on links in emails,

ostensibly to improve security, that redirects all links through a third-party

checker service. The two most common such services are the "SafeLinks" service

provided by Outlook and the "URLDefense" service provided by Proofpoint.

I don't like it at all, because I think it prevents you from assessing whether the email points to a safe destination or not.

It is unfortunately impossible to deactivate the safelink feature (except for personal accounts I guess?), and this is where this extension comes in play.

It replaces all occurrences of Safelinks- and URLdefense-encoded links from emails displayed in Thunderbird, and replaces them by their original value.

![Mail view with and without the extension.](/demonstration.png?raw=true "Mail view with and without the extension.")

# Installation

Head to https://addons.thunderbird.net/en-GB/thunderbird/addon/safelink-removal/ and install the extension.

# Building

In order to build this extension on Linux/MacOSX, execute these lines

```bash

# Clone the repository

git clone https://github.com/cphyc/thunderbird_remove_safelinks.git

# Move into the newly-created folder

cd thunderbird_remove_safelinks

# We use node + npm to build the project

npm install    # install the required files

npm run build  # create the bundled extension, located in web-ext-artifacts/

```

You can then install the extension by loading it directly in Thunderbird using the generated `.zip` file located in `thunderbird_remove_safelinks/web-ext-artifacts/`.

Note that if you install this way, you need to manually update the repository, rebuild the extension and reload it in Thunderbird in order to update it.