Cardiff in making iron and later steel, brought to the sea by packhorse from Merthyr Tydfil. This was first achieved by the construction of a long canal from Merthyr (510 feet above sea-level) to the Taff Estuary at Cardiff. Eventually the Taff Vale Railway replaced the canal barges and massive marshalling yards sprang up as new docks were developed in Cardiff – all prompted by the soaring worldwide demand for coal from the South Wales valleys. At its peak, Cardiff's port area, known as Tiger Bay, became the busiest port in the world and – for some time – the world's
Mozilla software rebranded by Debian browsers' user agent strings and refuse to work properly. As a workaround, Iceweasel 3.5.5 adds a "like Firefox x.x.x" string to the User-Agent. Debian users who perform a dist-upgrade in June 2016 received the following system message. According to Chris Hoffman of "PC World": "After a decade, Debian and Mozilla are burying the hatchet. Iceweasel is about to re-assume its proper name." The rebranded programs are available under Mozilla's standard MPL/GPL/LGPL tri-license. Like Mozilla, the default icons are under the same tri-license, but unlike Mozilla, there are no trademark restrictions. Mozilla software rebranded by Debian In 2006, a branding issue