DfVuBrowserPlugin.exe will not run on 64bit v.41; reports file may be corrupted - it runs on old Xp
I have used LizardTech DjVuBrowserPlugin50.exe on my old XP PC and recently tested it on a laptop. My new PC has 64bit Firefox 41 and using the 'Install Add-on from File' produces a message saying 'This add-on could not not installed because it appears to be corrupt'
Chosen solution
The answer is to put npdjvu.dll into the plugins directory of Mozilla Firefox and then enable it. Open the menu (right hand icon of menu bar) and select Add-ons. Scroll down to DjVu Plugin Viewer and change status from 'Ask to Activate' to 'Always Activate' Had no problems since then , although I have installed LizardTech Djvu Solo and DjVu Control, which contains DjVuViewer.exe
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In addition to refusing DfVuBrowserPlugin.exe, Firefox 41 also objects to DjVuctrl from Cuminas, which again runs on IE11, where it is reported to have '32-bit and 64-bit' Architecture
Chosen Solution
The answer is to put npdjvu.dll into the plugins directory of Mozilla Firefox and then enable it. Open the menu (right hand icon of menu bar) and select Add-ons. Scroll down to DjVu Plugin Viewer and change status from 'Ask to Activate' to 'Always Activate' Had no problems since then , although I have installed LizardTech Djvu Solo and DjVu Control, which contains DjVuViewer.exe