I am working on a url filtering chrome extension, I want to download a webpage to my extension folder so that extension can access it even without connection to my server. Is it doable?
woxxom provided the answer in a comment:
Not possible. Keep it in the storage.
Everybody can download chrome extension, edit and reupload, how i can protect my chrome extension and what i need to do if i see someone reupload my chrome extension?
You can't bulletproof-protect it. The only thing you can reasonably guarantee to be unique is the extension ID for published items - but any checks you would do against it can be circumvented.
It's not a technical problem. It's a social/legal problem.
If you see someone doing it, you should use the Report Abuse function of the Web Store.
What other does is to load the "actual" code of their extension remotely (via CDN)
The code that is packaged with chrome extension just act as loader or their "real" extension code.
See Streak's InboxSDK (sdk to build chrome extensions for gmail). It uses the same concept. https://www.inboxsdk.com/docs/
I have developed a chrome extension and i always use developer mode to debug. Now I want to deploy it. Is there a way to install extension per chrome profile? and I wonder how to get the extension id?
1：extension ID can be found at chrome://extensions.like this：
2：I have no idea about your words "install extension per chrome profile". any way, if you want to use your chrome extension without developer mode. just use the"pack extension" button in the chrome extension page. you will get a crx file. to install it, just drag and drop it in you chrome.
you can also publish it to chorme web store. see here. then you and any other could easily install your extension frome chrome web store.
Firstly to deploy your extension on web store you must have google developer account which costs $5.
Secondly the chrome extension id which you see while developing extension in your pc is different from what you will get when you have deployed your extension on chrome store.
Basically when you deploy your extension,chrome store ask you to upload the zip of your extension folder not the crx file.Also note that it will not give you any .pem file like you will get when you pack your extension locally.Chrome store will maintain the same extension id on each updation.
Note that you cannot update the extension with the same version.You must increment the version number on each updation,otherwise chrome will show error on updation.
Integrating a chrome extension(not hosted) with google drive seems to be not possible if I am correct. Is there a way to upload content from 'localstorage to google drive in a chrome extension?
Can the depreciated documents list api be used to do that? if yes, how?
For example, user has some data in the localstorage of the popup.html page in the extension. User would want to backup that data in his google drive. How can it be done from a chrome extension with no hosted page.
Thanks in advance.
You can upload files to Drive using JavaScript. Check the step-by-step quickstart guide for JavaScript to learn about it, you will have to change the code in order for it to read from localstorage instead of the filesystem:
We have a Chrome Extension application that we have developed and would like to distribute it only a limited number of internal users.
This would be a private app, but to install it, users now have to follow the manual steps of going to Settings -> Extensions -> clicking on Developer mode -> drop the .crx in there.
I would like to know if there is a way to just have private App Store to privately distribute this app and not have it on Chrome Web Store for anyone to see/download/use.
Thanks for your help in advance ---
You use the Chrome Web Store. 2 options are available:
Share an unlisted Chrome extension from the Chrome Web Store (anyone with the link will be able to install it)
Chrome customers using G Suite or Education can use the Chrome Web Store to host private apps restricted only to their users on the same domain.
See https://support.google.com/chrome/a/answer/2663860
Update 2016-05-20: From https://support.google.com/chrome/a/answer/2663860?hl=en
Chrome customers using Google Apps for Work or Education can use the Chrome Web Store to host private apps restricted only to their users or people who you share a direct link to the app with. Users from the same Chrome domain will see their organization's private apps in a private collection in the Chrome Web Store.
Update 2015-10-27: Google has updated installation policies in attempt to curb malicious extension activity on Windows. On the chrome extension hosting page:
Warning: As of Chrome 33, Windows users can only download extensions
hosted in the Chrome Web store, except for installs via enterprise
policy or developer mode (see Protecting Windows users from malicious
extensions). As of Chrome 44, no external installs are allowed from a
path to a local .crx on Mac (see Continuing to protect Chrome users
from malicious extensions).
With the latest versions of Google Chrome, users are no longer going to be able to just click a download link and have it install with the correct HTTP headers. This leaves you with 4 possible options:
user downloads extension and then drags the file into the extension management page (This no longer works on Windows per update note)
change registry settings on users computers
user downloads extension source folder and loads extension from source in the extension management page
Re-enable extension installs with command-line flag as suggested by Rob W
I have created and distributed several different Google Chrome extensions privately within my company and went with the first option. It is an extra step for the users but it wasn't a big deal. The users did not have to have developer mode enabled in their Chrome browser for this to work.
Yes, you can. You need to create the crx file through the google chrome "Extensions" page (visit: chrome://extensions/ NOTE: You cannot click the link you have to manually copy and paste it, chrome does not allow you to visit the link from href)
On the Extensions page, check the box "developer mode", choose "pack extension".
Now you get the following popup. Click "browse" for the Extension root directory and navigate to the folder containing your extension (the folder containing manifest.json).
The first time you do this, ignore private key file. It will generate one for you automatically and save it to the same folder.
When you release a new version of the extension, use the generated private key file. This way for someone to update the extension, it won't ask for permissions again.
TO INSTALL
To install the extension, just get each user to manually drag the newly created extension crx into the Extensions page (chrome://extensions/).
The first time it will ask for permissions just like when installing from the Chrome Web Store.
For each new version, as long as you used the same private key file for each new version, users just drag the new version into the Extensions page the same way except they won't be asked for permissions again. It will just update the extension.
WARNINGS:
Beware the way you distribute the extension crx file. When user downloads the extension .crx file in Google Chrome, it will think you're trying to install the extension from that page, and come up a warning "couldn't be installed from this site". You need to make sure that users know to ignore the error, and check their downloads folder for the extension to manually install it.
Whenever you download the .crx file, Chrome will give the user a warning saying it might contain a virus. There is no way around this. Even if you zip up the file, Chrome will read the contents and give the same warning. Some users won't install because of this. A workaround is to rename the .crx to something else, like .RENAME_TO_CRX, but this is a hassle and a lot of users either won't want to or won't be able to figure it out.
You can't update the extension automatically. It's just not possible because Chrome manually blocked this capability.
NOTE: Another way would be to release it on the Chrome Store, but only for certain users (not public). Only people with the link could install, OR you could make it only certain people can install and even if you had the link but weren't part of the group, they couldn't view the extension. Only problem here is if you don't want Google to see the extension.
If you use Google Apps, it appears there's now a way to publish apps and extensions to the Chrome Web Store, but only make it visible to users of that domain.
https://support.google.com/chrome/a/answer/2663860?hl=en
Since its internal, could you change registry settings on their computers?
Because if so, you can use them to allow easy install of extensions from outside the web store or force install extensions on their machine.
Look here....
http://www.chromium.org/administrators/policy-templates
http://www.chromium.org/administrators/policy-list-3#ExtensionInstallSources
http://www.chromium.org/administrators/policy-list-3#ExtensionInstallForcelist