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Alert () and console.log () do not work in Firefox 26

It seems to me that I'm losing my mind, but alert() and console.log() refuse to work anywhere on Firefox 26 .

At first I thought it was a problem of my own site, but I can’t get it to work with javascript: for life javascript: urls, Firebug , I even tried it in jsfiddle.net , just by placing alert('test'); in the script panel.

Tried to remove and install again, no luck.

The only extension I'm running on is Firebug.

Hell, Stackoverflow didn't even tell me that I would leave when I accidentally hit the back button while writing.

Also yes, I made sure in alert() and console.log()

have some content

I mean, what doesn't work is that Firefox treats the code as if it doesn't exist, nothing happens.

Once again, here is my environment:
Browser: Firefox 26.0
OS: Windows 8.1 Pro
Problem: alert() , console.log() and apparently prompt() not working

If anyone can know why this is happening, I would really appreciate the answer.

UPDATE

Pointy's next comment, it seems that both alert() and console.log() work as expected on the New Tab page, but nowhere else

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6 answers

Thanks for helping everyone, after all, I used Revo Uninstaller to completely and completely erase Firefox from my system and then install it again. It seems that it is working now, the initial uninstaller, most likely, did not fix everything that caused the problem.

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You might want to try reinstalling Firebug:

PS: I seem to have a similar configuration working (including FF 26) ... and everything works fine for me. IMHO ...

PPS: You can also try setting "about: config, prompts.tab_modal.enabled = false":

The default is true, my FF 26 is set to true, and everything works for me ... but who knows. If reinstalling Firebug does not help, maybe you should do it?

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Stupid, but in firebug you can check if window.alert and window.console are defined .... and if so, can you check if window.alert ('hi') is working?

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I have the same error when I use the Ghostery extension. Turn off the Ghostery page and reload. Let's take a look at https://getfirebug.com/tests/head/console/api/log.html

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I had a similar problem in IE v11.0.10 and Chrome Canary v38.0.2114. The problem is duplicate function name. You should quickly check the function names in the Javascript file.

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You can use the Firefox console with CTRL + SHIFT + K

Associated: https://support.mozilla.org/en-US/questions/876916

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