Firefox error console buffer size is too small

Question

How to change the default Firefox error console buffer size? The problem is that there isn't enough time to read messages: old ones get overridden by the newer messages.

Answer 1

I know this is an old one, but this came up as my top search and the setting can now be found in the about:config settings.

Type about:config into the address bar and select ok to the dragons.

type this into the filter

devtools.hud.loglimit.console

Answer 2

AMO :: DevPrefs

Can increase buffer size from the options panel of that addon:

_{(source: mozilla.net)}