I am working on a C++ project that will read a Chrome Preferences file and enumerate Extensions and Plugins from it.
The main requirement is that only those extensions and plugins displayed in chrome://extensions and chrome://plugins should be used/displayed by my app.
Does anybody know which setting for an Extension determines if it is displayed under chrome://extensions? I can't find the logic behind...
Does anybody know the set of rules that will group the plugins as they show in chrome://plugins? Is it name, version or ... I can't find the logic behind as well
This is only a partial answer, but to my knowledge there is no setting to prevent an extension showing up from the chrome://extensions tab - everything installed will appear (you can hide the icons that show up in the toolbar, but everything will be visible in chrome://extensions. Therefore (again, according to what I've read and my somewhat limited experience), all installed extensions appear in chrome://extensions (this is primarily for security reasons).
Regarding the plugins, which particular grouping are you referring to? My groupings appear to happen when either there are multiple files in the same package (inclusive of Firefox plugins as well, oddly enough). See here for a little more detail, and sorry if that wasn't as specific as you're looking for :)
Related
I've been looking for an answer for a while now and I can't seem to find any reasons why this is an issue. I have various places in my style sheets where I use cursor: pointer for UI elements like buttons and links. The majority of the time it works as I expect, but occasionally they just don't want to work. I'd love to say I have a specific example in the style sheets that would ensure replication but that's been the issue. When it happens, it's not just for one element, it's for all of them. I've experienced this across the board with modern browsers and it seems to just be completely random which makes it hard to troubleshoot.
The only thing I've been able to confirm 100% is that if it does happen, I can open developer tools, then select an element to inspect that is supposed to have the cursor: pointer and the effect begins working everywhere again. I'm not sure what's going on here and it's driving me up the wall.
Is there any documentation surrounding this issue or something similar?
I experience it in localhost.
I haven't noticed it in production.
I haven't noticed it on JS Fiddle or Codepen when creating wireframes.
Is it a localhost issue? I've even thought it may be related to something I had done prior, but it happens even as I just navigate the site while debugging, sometimes it works on one page, but come back to the same page later in the session and it may not work anymore.
I know this one's tough and there's not a lot to go on. I don't usually make posts without code, but I'm just wondering if anyone else has experienced the same or a similar issue and resolved it.
I too have experienced this. It's actually not a code issue at all. I've found that the cursor: pointer bug you're experiencing is directly related to the Visual Studio 2017 (and newer) remote debugging browser window.
Solution
In Visual Studio, disable "Enable JavaScript Debugging for ASP.NET (Chrome & IE)".
At the top of your Visual Studio window, go to Debug -> Options. The highlighted item in the screenshow below must be unchecked:
This was a feature added in 2017, and while it helps with debugging JavaScript and TypeScript, it does so by launching a plain browser window ("remote debugger"); that is, no extensions, no bookmarks, no history, etc. The remote debugging browser window seems to have its fair share of bugs.
I saw this same behavior but not while debugging through visual studio. If I hit F12 to go to the Chrome dev tools, then click on an html element. The cursor goes to the style listed according to the style sheet.
I am trying to understand about Chrome (browser) development. I am very new to this and trying to figure out where to start in order to develop for Chrome Browser.
Just have a couple of questions:
What is the difference between Chrome Browser apps vs. plugins vs. extensions (not sure, if this question make sense. But, hope you got what I am asking for)
What kind of applications can I develop for Chrome Browser
What technologies do I need to learn in order to develop for Chrome Browser.
To answer your first question this explains the differences between apps and extensions (I think there's no better way to explain their nature):
https://developers.google.com/chrome/web-store/articles/apps_vs_extensions
What do you mean with "what kind of apps"?
You can develop both hosted and packaged apps if is that what you intended, give a look at this:
https://developers.google.com/chrome/apps/docs/index
Anyway the easiest way to start would be by building an extension, how-tos and
good documentation makes it good to start with:
http://developer.chrome.com/extensions/getstarted.html
Just to add to the above answer which was missing difference between Plugin and Extension is:
Plugin is a third-party library that is plugged-in to the browser and allows for being embedded on a webpage. It affects only the web page that is using the plugin.
Extensions change the browser UI, add menus or change overall look of the browser and can process each page that gets loaded.
So to sum it up - plugins add functionality and extra features to a particular webpage while extensions add functionality and features to the whole browser and change the behavior of the browser.
Just to add on new information since people may continue to hit this question: Chrome has basically deprecated plugins as of March 2017 (Chrome 57). If you go to chrome://plugins now, you won't see anything (you used to see a list of installed plugins with enable-disable links like for extensions).
It seems the reasoning is that the only plugins they actually wanted to allow you to enable/disable are Flash and PDF Viewer, both of which were moved to the Settings menus (if they weren't already there, not sure). The rest are considered to be integral parts of the browser. https://www.ghacks.net/2017/01/29/google-removes-plugin-controls-from-chrome/
Makes things a bit simpler to think about now.
I am learning how to build simple extensions that use content scripts. To do so, I am tweaking existing sample extensions to get a lay of the land -- or at least that is the goal.
Problem is, none of the sample extensions that use content scripts seem to work for me. Two simple ones that should work but are not are: Email this Page, and SandwichBar (Direct link to zipped extension folder http://developer.chrome.com/extensions/examples/api/infobars/sandwichbar.zip ).
I am using Chrome 16.0.912.75 on a Linux box. Any ideas why this might be the case? Conflicting extensions or overriding flags? I would really appreciate any suggestions.
Thank You!
Sandwitch bar do not work because it uses info bar experimental API manifest version 2
Probably because you're using a really old version of Chrome (in internet years at least). They change the APIs from time to time, and probably something they've done in the interim has broken content scripts in Chrome 16 (for example the change from sendRequest to sendMessage). Isn't a more recent version of Chrome available for your platform?
I am looking to develop a cross browser extension (plugin) and am having troubles getting answers to a few questions. So just looking for some simple answers if what I would like to do is possible. Thanks. I am currently looking at using Crossrider but would use whatever.
How do some extensions add a menu to the right click button. For example, when I right click in Chrome I see Evernote Web Clipper and Adblock options in the dropdown). How do they do that?
Could I embed a youtube player, for example. So when it's closed the audio still plays but when clicked you can see the video and what not?
For sites like Grooveshark. Could they have a plugin that when clicked you could change the song or stop the music, etc. So basically communicate with a website in your tab from the plugin?
Thanks. I just found Crossrider and it looks like some may be possible but havn't explored it too in depth yet. Kind of wondering if anyone has tried doing these things and if possible.
Google has a specific API for adding context menus. You can read about it here. Just be sure to request permissions for context menus in the manifest.json file and then you can add everything else to your background JavaScript file.
I don't think it's exactly possible to embed a YouTube player into the extension directly. Google Chrome will not allow for running inline scripts, which are clearly required to run YouTube within a popup page (or anything else, for that matter).
As for your third question, you would have to check into the individual APIs for any sites that you want to run the extension with. Every site is going to be a little bit different and my first instinct is that most sites are not going to allow for directly adding their player to the extension.
I would strongly suggest checking out the information about developing Google Chrome extensions available on Google Code. They provide a great tutorial and reference for the basics of developing extensions.
I'm trying to get a start in programming by writing a Chrome extension similar to the Smart Bookmarks Bar extension for Firefox. Java seems straightforward enough, and I can probably figure out the specifics of building an extension but I can't find out what commands I need to change the rendering of the bookmarks.
1)Does anyone know where I could find the relevant documentation?
2)Does anyone know of extensions that interact with bookmark rendering I could take a look at the source code of?
Everything you can do with the bookmarks is listed in the API:
http://code.google.com/chrome/extensions/dev/bookmarks.html
(and as someone said here on SO: java is related to javascript as a car is related to a carpet :] )