Base64 URL Decoder & Opener

Decode a base64 URL (even encoded twice) and open it in the tab to the right.

This is an addon for a niche usage. It decodes a base64 encoded (once or twice) URL and opens the URL in the tab to the right (in background). That's it. No other extraneous functions. You probably don't need this!

Usage: Select a base64 url and right click to invoke the context menu. You will see 2 options: Decode Once & Decode Twice. Select the right option based on how many times the url was encoded. The addon will decode and open it in the right tab.

Get the extension from:

Chrome: https://chrome.google.com/webstore/detail/base64-url-decoder-opener/dmjommdldlbamppffbonacmohmdlklmm

Firefox: https://addons.mozilla.org/firefox/addon/base64-url-decoder-opener/

Screenshot of the addon in action

Firefox Signing for self distribution:

• Use web-ext (npm install --global web-ext)
  • https://extensionworkshop.com/documentation/develop/getting-started-with-web-ext/
• Signing: web-ext sign --api-key= --api-secret=
  • Get key and secret from https://addons.mozilla.org/en-US/developers/addon/api/key/
• The process will take 10-15 mins. Wait!
• The output will be in web-ext-artifacts -> .xpi file. (To install, select install addon from file)

Tips for development

archiving for submission

• If you want to make a zip without those invisible Mac resource files such as “_MACOSX” or “._Filename” and .ds store files, use the “-X” option in the command:
  • zip -r -X b64.zip ./ (make sure to zip from within the src folder. else the submission will be rejected)