crx file install in chrome

Question

I have just created a very simple chrome extension and it works fine  But when I converted to  crx file and try to open it with chrome  nothing happens  my chrome browser version is 19 0 1081 2 dev-m  My extension uses jquery-1 4 2 min  I could not understand whats the problem

User · Accepted Answer

Opening the debug console in Chrome  or even looking at the html source file  after it is loaded in the browser   make sure that all the paths there are valid  i e  when you follow a link you get to it s content  and not an error   When something is not valid  fix the path  e g  get rid of the server specific part and make sure you only refer to files that are part of your extension through paths like  js jquery-123-min js

User · Answer

I had a similar issue where I was not able to either install a CRX file into Chrome   It turns out that since I had my Downloads folder set to a network mapped drive  it would not allow Chrome to install any extensions and would either do nothing  drag and drop on Chrome  or ask me to download the extension  if I clicked a link from the Web Store    Setting the Downloads folder to a local disk directory instead of a network directory allowed extensions to be installed   Running  20 0 1132 57 m

User · Answer

In case Chrome tells you  This can only be added from the Chrome Web Store   you can try the following    Go to the webstore and try to add the extension It will fail and give you a download instead Rename the downloaded file to  zip and unpack it to a directory  you might get a warning about a corrupt zip header  but most unpacker will continue anyway  Go to Settings -  Tools -  Extensions Enable developer mode Click  Load unpacked extention  Browse to the unpacked folder and install your extention

User · Answer

Update  appears to have stopped working since Chrome 80 Drag  amp  Drop the   crx  file on to the  Extensions  page   Settings - icon  gt  Tools  gt  Extensions   the  hamburger  icon in the top-right corner    Enable Developer Mode   toggle button in top-right corner    Drag and drop the   crx  extension file onto the Extensions page from step 1   crx file should likely be in your Downloads directory    Install    Source  Chrome YouTube Downloader - install instructions

User · Answer

File format This tool parses  CRX version 2 format documented by Google  In general   CRX file format consist of few parts   Magic header Version of file format Public Key information and a package signature Zipped contents of the extension source code Magic header is a signature of the file telling that this file is Chrome Extension  Using this header the operating system can determine the actual type of the file  MIME type is application x-chrome-extension   and how should it be treaten  is it executable  is it a text file    Then the window system can show beautiful icon to the user   In  CRX files the magic header has a constant value Cr24 or 0x43723234   The version is provided by vendor  The version bytes are 0x02000000   The next part of the file contains the length of the public key information and the length of a digital signature   All  CRX packages distributed via Chrome WebStore should have public key information and digital signature in order to make possible for browser to check that the package has been transmitted without modifications and that no additions or replacements were made   After all of the header stuff  typically ending up on 307 th byte  comes the code of extension  stored as zip-archive  So the remainder of the  crx file is the well-known  zip archive    crx file opened in the hex editor called HexFiend  on Mac  The header part of a  crx file selected on the picture above  Obviously  you can extract the remaining  zip archive  by hand  using any simple hex editor  In this example  we use handy HexFiend editor on Mac   The CRX Extractor loads a file provided  checks a magic header  version and trims the file  so only  zip archive remains  Then it returns obtained  zip archive to user   ref  https   crxextractor com about html  https   github com vladignatyev crx-extractor

User · Answer

I arrived to this question looking for the same but for Chromium  actually I m using https   ungoogled-software github io   So in case anyone else is looking for the same    Go to chrome   flags  Search for Handling of extension MIME type requests Select Always prompt for install Search for an extension and copy its URL  something like https   chrome google com webstore detail      Paste the URL in https   crxextractor com  and download the  CRX Voil    Chromium will prompt for installation

[google-chrome] .crx file install in chrome

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