Extension source viewer extension

This Opera extension adds a button to right of the omnibox when a CRX file or Firefox addon has been detected.
By default, this is only enabled on the Chrome Web Store, the Opera addon gallery and Firefox addon gallery. Upon clicking the button, three actions
become available:

- Download extension as zip file
- View source
- Install extension

The default action (showing the above options) can be changed via the "Primary action on click" menu that appears when you right-click on the extension button.

The "View source" option opens a new tab with a simple viewer, with the following features:

- Download-as-zip and download-as-crx at the upper-right corner.
- List of file names, and the option to filter files with a regular expression.
- Find files containing a string, or with content matching a regular expression.
- Quickly jump between search results, or from/to a specific line.
- Automatic beautification (formatting) of code
- Syntax highlighting
- Image preview
- Show hashes (md5, sha1, sha256, sha384, sha512) of the file content.
- View content of embedded zip files.
- Download Chrome Web Store extensions for a different platform (e.g. Chrome OS or NaCl).
- View the contents of any URL or zip file.
- Permalink to file and search result within a zip or extension file.

It is also possible to view the source code of Chrome, Opera 15+ and Firefox extensions that are hosted elsewhere. Further, there is an option to show a contextmenu entry on links whose target is a Chromium extension. Both features can be toggled at the options page.

Online demo with similar functionality: https://robwu.nl/crxviewer/

Permissions

Screenshots

Feedback from users

Reviews and ratings

j-georesearcher says:

Rating: 3

when i try install the add on from firefox downthemall, the installation faills with this error CXR_HEADER_INVALID, please help

Opera in windows 10

Dec. 16, 2017 - Version 1.6.2
rexfx says:

Rating: 5

The only that works on Linux

Nov. 17, 2017 - Version 1.6
escalepion says:

Rating: 5

this is really my hero :) perfect extension

Sept. 19, 2017 - Version 1.6
rudrick says:

Rating: 5

Name of this extension could also include that it's an installer as well - and downloader.

July 28, 2017 - Version 1.6
projectsoft2009 says:

Rating: 5

Good!

Jan. 9, 2016 - Version 1.2.7
andrzejjajko says:

Rating: 5

fajne dodatki znikają ze sklepu google chrome chociaż nadal działają dzieki temu dodatkowi będę mógł sobie je zapisać w tym folderze gdzie mam plik z programem Opera

June 30, 2015 - Version 1.2.4
peteruss80 says:

Rating: 3

nice add on

April 30, 2015 - Version 1.2.4
flashwalker says:

Rating: 4

How about to add an option for downloading as .crx file format?

July 4, 2014 - Version 1.2.4
luetage says:

Rating: 5

very useful and nice icon :P

May 27, 2014 - Version 1.2.3
jfmoris110 says:

Rating: 5

Thank you for this great extension. I am learning javascript and this should be very helpful

March 31, 2014 - Version 1.2.2