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Installing extention *.xpi with error

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Frank1
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Installing extention *.xpi with error

Trying to install extension with .xpi.
The Plugins window doesn't allow installation. I entered the local address on my hard drive into the address bar and showed me the files in the directory. Double clicked the .xpi I want to install and gave me the option to install.

It started to insall but gave me an error -
"Could not install the file:
location
because: Install script not found
-204"

What is this Install script, and where do I find it?
Thanks

Simeon
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What extension is it?

maybe you got a corrupted file/download...

"What about Love?" - "Overrated. Biochemically no different than eating large quantities of chocolate." - Al Pacino in The Devils Advocate

Frank1
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I tried downloading

I tried downloading again.
The same result.
I don't think it's a corrupted file.
What script is Firefox Portable refering to?
Thanks

ottosykora
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which extension is it?

there are so many and there is no waranty that they do work in any case, so it can be bad file, simply missing some file in it.

Otto Sykora
Basel, Switzerland

Frank1
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Dissapointing that it doesn't

Dissapointing that it doesn't work.
If it doesn't work, it doesn't work.
Thanks for the help.

J Neutron
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Drag and Drop

Drag the .xpi file onto an open Firefox window, and it should install.

Jim

neutron1132 (at) usa (dot) com

ottosykora
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whcih xpi?

is it?
may be someone else could try and see where the problem is.

Otto Sykora
Basel, Switzerland

Frank1
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J Neutron, I tried your

J Neutron, I tried your suggestion.
It gives the same error message as in my first post above.
Thanks

I agree with you ottosykora.
I got the .xpi file from here:
https://portableapps.com/support/firefox_portable#plugins
Its the Flash pluigin installed as an extension.

Thanks

ottosykora
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ok have tested it

but it does not give any error in my case, it seems to try to install something, but when i t is finished, there is nothing installed.

I have therefore no idea if this extension really works. There are some other described installations procedures for flash, you might try those.

Otto Sykora
Basel, Switzerland

ottosykora
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ok have the error

but only on FF3
on FF2 there is no error, but somehow the 'installation' goes on for ever, but it looks like there is nothing installed later.

Alldifficult to test, the local installation has flash in it, so all is mixing.

Otto Sykora
Basel, Switzerland

ottosykora
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try this

https://portableapps.com/node/13737

looks it is kind of tricky with the flash etc.

Otto Sykora
Basel, Switzerland

John T. Haller
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Fake Extension

That flash installer isn't a real extension. It's a plugin installer masquerading as an extension. And it appears that it doesn't work as well as it used to (ask Adobe about that).

Don't bother with the complicated install instructions linked above, just use our automated flash installer:
https://portableapps.com/node/15501

Sometimes, the impossible can become possible, if you're awesome!

Frank1
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John, your installer appears

John, your installer appears to work.
It installed the two files in my \FirefoxPortable\App\Firefox\plugins directory.

I can't check it properly now since I have the Flash installed on my computer already anyway. The browser showed flash content before.

What I don't understand is that now that it is installed into Firefox Portable why I cant see it in the Tools\Add-ons\Extensions or Plugins.
Thanks

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