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this answer always comes when I try to install: Firefox could not install the file at https://addons.mozilla.org/en-US/firefox/downloads/latest/1865/addon-1865-latest.xpi?src=addondetail because: Unexpected installation error Review the Error Console l

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AnonymousUser
AnonymousUser
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Firefox could not install the file at

https://addons.mozilla.org/en-US/firefox/downloads/latest/1865/addon-1865-latest.xpi?src=addondetail

because: Unexpected installation error Review the Error Console log for more details. -203 Why does this come up

This happened

Every time Firefox opened

Firefox could not install the file at https://addons.mozilla.org/en-US/firefox/downloads/latest/1865/addon-1865-latest.xpi?src=addondetail because: Unexpected installation error Review the Error Console log for more details. -203 Why does this come up == This happened == Every time Firefox opened

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the-edmeister
the-edmeister
  • Moderator
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See this: http://kb.mozillazine.org/Unable_to_install_themes_or_extensions_-_Firefox#Unexpected_installation_error_-203