For Bandwidth Meter and Diagnostic Firefox Extension for K-Meleon 74/75 to work with K-Meleon 74.0 and K-Meleon 75.0 Beta 1. download Bandwidth Meter and Diagnostic
https://addons.cdn.mozilla.net/user-media/addons/2450/bandwidth_meter_and_diagnostics-1.2.5-fx.xpi and rename it to
bandwidthmeter@gotomyhelp.com.xpi
Then download Bandwidth Tester h
http://kmext.sourceforge.net/extensions/bandwidthtester.7z for K-Mleleon 74.9 and K-Meleon 75.0 Beta 1 extract macros to a folder then editing bandwidthtest.kmm changing line
$OpenURL="chrome://bandwidthtest/content/tester_dialog.xul";
Into the line below
$OpenURL="chrome://bandwidthmeter/content/tester_dialog.xul";
Then copy the macros folder into the k-Meleon Root Folder.
The Bandwidth Meter and Diagnostic Firefox Extension
https://addons.cdn.mozilla.net/user-media/addons/2450/bandwidth_meter_and_diagnostics-1.2.5-fx.xpi
Appeaars to be an updated version of the exteniosn Bandwidth Tester Extension
http://mirrors.directorymix.com/mozilla/addons/178/bandwidth_tester-0.5.4-fx+mz.xpi witch does not work with Fiefox, K-Meleon 74.0, and K-Meleon 75.0 Beta 1.
Re: List with Links to Firefox Addons that work for 74/75
http://kmeleonbrowser.org/forum/read.php?9,131158,131275#msg-131275