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I've been using a plugin called Firefox Throttle that allowed the user to see the current data traffic in firefox. For example, if you were loading a Youtube video, in the plugin bar of the browser you could read the current download and upload traffic metered in kb/s.

Unfortunately this plugin isn't compatible with firefox 6 and changing the "maxVersion" value in the install.rdf file doesn't work.

Is there any plugin to meter the firefox traffic?

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I had the exact same issue earlier. The only way to resolve it is to use a portable version of Firefox 3.6 and install Firefox throttle for it.

You can find firefox 3.6 portable here.

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:( that's too bad, I don't want to rollback to 3.6. Thanks anyway for the workaround. – Andres Aug 31 '11 at 14:42

Try out the Firefox addon called Minimeter.

Monitor your provider's upload/download usage meter.

enter image description here

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Mmmmmmmmmm, that plugin measures how much bandwidth do you have if your ISP has limits. It doesn't show the current download/upload rates. – Andres Aug 29 '11 at 0:38

The StatusbarEx add-on seems to do the job :


The Extended Statusbar add-on will do a part of the job, but only for download (not for upload).
Another similar one is the Download status add-on.

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StatusbarEx counts all the traffic coming from your network card, so if i'm receiving a file through my local network and downloading another file through firefox the plugin will show the combined download speeds, so it doesn't replace firefox throttle :( – Andres Sep 4 '11 at 1:46
Download Status doesn't show any data in firefox 6 :( – Andres Sep 4 '11 at 1:50
Extended Statusbar seems to work ok, but shows the average speed. Also it gets stuck from time to time :( – Andres Sep 4 '11 at 1:51

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