How do I disable firefox console from grouping duplicate output? - firefox

Question

Anyone knows how to avoid firefox console to group log entries?
I have seen how to do it with firebug https://superuser.com/questions/645691/does-firebug-not-always-duplicate-repeated-identical-console-logs/646009#646009 but I haven't found any group log entry in about:config section.
I don't want use Firebug, because it's no longer supported or maintained and I really like firefox console.
I try to explain better, I want console to print all logs and not the red badge with number of occurences of one log string:
In the above picture I would like to have two rows of the first log row, two rows of the second and three of the third.
Is this possible?
Thanks in advance

Answer 1

Update [2022-01-24]
Seems like the below option doesn't work as expected. feel free to report it as a bug
Update [2020-01-28]
Firefox team added option to group similar messages, which is enabled by default.
You can access to this option via Console settings
Open up Firefox's dev tools
Select Console tab
Click on gear button (placed at the right of the toolbar)
Change the option as you wish
Original Answer
As I mentioned in comment section, There is no way to achieve this at the moment. maybe you should try to request this feature via Bugzilla#Mozilla
Also you can check Gaps between Firebug and the Firefox DevTools

Answer 2

As a workaround you can append a Math.random() to the log string. That should make all your output messages unique, which would cause them all to be printed. For example:
console.log(yourvariable+" "+Math.random());

Answer 3

There is a settings menu () at the right of the Web Console's toolbar now which contains ✓ Group Similar Messages:

Answer 4

To solve this for any browser, you could use this workaround: Override the console.log command in window to make every subsequent line distinct from the previous line.
This includes toggling between prepending an invisible zero-width whitespace, prepending a timestamp, prepending a linenumber. See below for a few examples:
(function()
{
var prefixconsole = function(key, fnc)
{
var c = window.console[key], i = 0;
window.console[key] = function(str){c.call(window.console, fnc(i++) + str);};
};
// zero padding for linenumber
var pad = function(s, n, c){s=s+'';while(s.length<n){s=c+s;}return s;};
// just choose any of these, or make your own:
var whitespace = function(i){return i%2 ? '\u200B' : ''};
var linenumber = function(i){return pad(i, 6, '0') + ' ';};
var timestamp = function(){return new Date().toISOString() + ' ';};
// apply custom console (maybe also add warn, error, info)
prefixconsole('log', whitespace); // or linenumber, timestamp, etc
})();
Be careful when you copy a log message with a zero-width whitespace.

Answer 5

Although you still cannot do this (as of August of 2018), I have a work-around that may or may not be to your liking.
You have to display something different/unique to a line in the console to avoid the little number and get an individual line.
I am debugging some JavaScript.
I was getting "Return false" with the little blue 3 in the console indicating three false results in a row. (I was not displaying the "true" results.)
I wanted to see all of the three "false" messages in case I was going to do a lot more testing.
I found that, if I inserted another console.log statement that displays something different each time (in my case, I just displayed the input data since it was relatively short), then I would get separate lines for each "Return false" instead of one with the little 3.
So, in the code below, if you uncomment this: "console.log(data);", you will get the data, followed by " Return false" instead of just "false" once with the little 3.
Another option, if you don't want the extra line in the console, is to include both statements in one: "console.log("Return false -- " + data);"
function(data){
...more code here...
// console.log(data);
console.log("Return false ");
return false;
}
threeWords("Hello World hello"); //== True
threeWords("He is 123 man"); //== False
threeWords("1 2 3 4"); //== False
threeWords("bla bla bla bla"); //== True
threeWords("Hi"); // == False