I don't have a solution for you other then the one Magic Banana suggested.
According to the
[https://www.gnu.org/software/gnash/manual/gnashuser.html#runs-on Gnash user
manual section "What Is Supported?"] Gnash only supports up to flash version
9. Flash 11 will not work with gnash.
- [Trisquel-users] Question about flash 11 emulation Steve Spartz
- [Trisquel-users] Re : Question about flash 11 emulation magicbanana
- Re: [Trisquel-users] Question about flash 11 emulat... sirgrant
- Re: [Trisquel-users] Question about flash 11 emulation yeeehi
- Re: [Trisquel-users] Question about flash 11 emulat... Ivaylo Valkov
