A workaround is to make the description shorter, but I know it's not ideal.
It's now "Bruc 100 with manual, cables and tape", I think it should fix the problem with Firefox.
About "French matrix for Philips VG-8020, Sanyo PHC-28L, Schneider MC 810 and Yeno DPC-64":
Schneider MC 810 is a rebranded VG-8010 whose matrix is special.
About Russian matrix, I think you need to add Sanyo MPC-2300, Sanyo MPC-2500FD and Sony HB-F9P Russian version.
About "French matrix for Canon V-20, Sanyo PHC-28 and Yeno MX64":
Which PHC-28? PHC-28L is with Philips VG-8020 while PHC-28S has a QWERTY keyboard.....
This wiki page started a long time ago and it is still very incomplete. The right info are not easy to find.
I bought this set today that comes with an FW-RSU1H (NOT FW-RSU1W which is on the wiki). Will post details if the scanner arrives.
It comes (and presumably connects to) th FS-IFA1.
I suspect that the Panasonic FS-IFA1 interface can drive different scanners for Panasonic word processor machines (U1 series) like these:
https://page.auctions.yahoo.co.jp/jp/auction/t816049483
https://page.auctions.yahoo.co.jp/jp/auction/n348114171
Indeed, it seems these scanners were developed for use with the panaword word processors and the IFA1 was designed ao theybcan be used on the MSX word processors (WX/WSX) as well. There was anyway quite some overlap between those product lines (they may have even been 1 division inside the company).
Look at the keyboard on this U1-PRO word processor:
Msxholder,
About Sony HB-55 and HB-75, is it just an I/O port or a specific expansion bus?
Just I/O and different pinning.
What is the pinout?