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To enable it set the devtools.chrome.enabled preference to true in about:config, or set the "Enable browser chrome and add-on debugging toolboxes" (Firefox 40 and later)  option in the developer tool settings. I have set the filter to "All". What could I be missing or where do extension javascript logs appear? Is the NHS wrong about passwords?

Logging to Firebug is fine if possible. Just assign it to a debug function: var debug = function () {} ; if (window.console != undefined) { debug = console.log; }. Is there a role with more responsibility? However, Firefox 4 has a new Tools > Web Console, and if this is open you have a window.console object and untrusted JavaScript code on the page can use console.log().

What is a type system? Physically locating the server Digital Diversity How do computers remember where they store things? up vote 1 down vote favorite 1 I just started getting into Mozilla Firefox extensions, and I'm sure I'll do a lot of mistakes, but I am unable to find errors Both these preferences can be set programmatically using the preferences/service API, or manually using about:config.

Modifying the browser UI Since the global window object is the browser's chrome window, you can also modify the browser's user interface. How do I explain that this is a terrible idea? Pronuncia strana della "s" dopo una "r": un fenomeno romano o di tutta l'Italia? So, after some time of hunting down the solution, I finally pressed Ctrl+Shift+J and it opened the Browser console where I could see logs from my add-on using console.error. –Gaurang Tandon

it sounded like your were already aware of this. Quick and dirty summary: In about:config set extensions.sdk.console.logLevel to "all" Although from your question: I have set the filter to "All". ... share|improve this answer answered Sep 19 '10 at 2:51 skierpage 1,0381014 1 This is the absolutely perfect solution for the question asked. –Clint Pachl Nov 9 '11 at 19:08 add But this has the advantage that I can filter out all the warnings from the add-on builder itself, so using the error level for my debug messages is quite useful actually.

When you install an add-on into Firefox, the logging level will be "error" by default (that is, unless you have set one of the two preferences). When you run your add-on using jpm run (without --profile set) or jpm test, the global extensions.sdk.console.logLevel preference is automatically set to "info". https://developer.mozilla.org/en-US/docs/Mozilla/Tech/XPCOM/Reference/Interface/nsIConsoleService This doesn't require the sdk. It's hard to get users to change things like that. –jmort253 Aug 6 '11 at 16:18 1 Even with Firefox 3 this function required to grant full privileges to the

I guess it might not be possible at all, to prevent malicious web pages from spamming the log? Browse other questions tagged firefox logging firefox-addon firebug firefox-addon-sdk or ask your own question. Is this good practice. Document Tags and Contributors Tags: Add-on SDK Contributors to this page: wbamberg, jamiejon99, Miryafa, saima75, fixanoid, tomica Last updated by: wbamberg, Jan 15, 2016, 10:39:47 AM See also WebExtensions Getting started

And what about "double-click"? The Web Console is in flux (see https://wiki.mozilla.org/Firefox/Projects/Console), you may need to change settings named devtools.* in about:config , YMMV. Generate a 6 character string from a 15 character alphabet Cyberpunk story: Black samurai, skateboarding courier, Mafia selling pizza and Sumerian goddess as a computer virus What is this? You can also start the Browser Console by launching Firefox from the command line and passing the -jsconsole argument: /Applications/FirefoxAurora.app/Contents/MacOS/firefox-bin -jsconsole The Browser Console looks like this: You can see that

Join them; it only takes a minute: Sign up Firefox extension js error log, where? My CEO wants permanent access to every employee's emails. You don't have to require() anything to get access to the console. Why are empty blocks not all the same size?

Manipulating data displayed in Error Console Information displayed in Error Console can be accessed and manipulated through the Console service. console.log(object[, object, ...]) Logs the arguments to the console, preceded by "info:" and the name of your add-on: console.log("This is an informational message"); info: my-addon: This is an informational message console.time(name) Not the answer you're looking for? Try our newsletter Sign up for our newsletter and get our top new questions delivered to your inbox (see an example).

But the console.log output is nowhere to see. Warning usually lets the program compile but warns of bad coding and suggests design flaws. Firebug The extension for Firefox also integrates the Error Console with various improvements. Are independent variables really independent?

The console.log() method prints an informational message: console.log("Hello World"); Try it out: create a new directory, and navigate to it execute jpm init, accepting all the defaults open "index.js" and add To enable it set the devtools.chrome.enabled preference to true in about:config, or set the "Enable chrome debugging" option in the developer tool settings. Join them; it only takes a minute: Sign up Firefox Addon console.log() Not working up vote 9 down vote favorite 2 So I need to check some results in a Firefox The mortgage company is trying to force us to make repairs after an insurance claim Is it possible to have a planet unsuitable for agriculture?

asked 3 years ago viewed 1373 times active 1 year ago Visit Chat Linked 7 Logging to console from Firefox extension? It reports JavaScript-related errors and warnings, CSS errors and arbitrary messages from chrome code. Is there a role with more responsibility? See Timers.

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Console.jsm To use the console API from a traditional or bootstrapped add-on, get it from the Console module. javascript firefox logging firefox-addon share|improve this question edited Jul 16 '13 at 11:04 asked Jul 16 '13 at 10:46 wafflemoon 206 add a comment| 4 Answers 4 active oldest votes up Pronuncia strana della "s" dopo una "r": un fenomeno romano o di tutta l'Italia? I'm using version 1.10 of the add-on SDK and FF15.

In the United States is racial, ethnic, or national preference an acceptable hiring practice for departments or companies in some situations? This example here makes it so that when you mouse over the "Clear" button it will clear the Browser Console: Components.utils.import("resource://devtools/shared/Loader.jsm"); var HUDService = devtools.require("devtools/client/webconsole/hudservice"); var hud = HUDService.getBrowserConsole(); var clearBtn cfx or its successor jpm creates this configuration key automatically in development firefox profile. I changed my calls to this and they show up in the log window now (as error messages).

If you have started Firefox for your add-on from the command line with jpm run or jpm test then these messages appear in the command shell you used. A bullet shot into a door vs. About MDN Terms Privacy Cookies Contribute to the code Other languages: English (US) (en-US) Deutsch (de) Français (fr) Bahasa Indonesia (id) 日本語 (ja) Melayu (ms) Nederlands (nl) Português (do Brasil) (pt-BR) Русский Because DOM objects aren't available to the main add-on code, the SDK provides its own global console object with most of the same methods as the DOM console, including methods to

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