Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Èròjà atẹ̀lélànà yii ni a ti fi pamọ́ fọ́jọ́ pípẹ́. Jọ̀wọ́ béèrè ìbéèrè titun bí o bá nílò ìrànwọ́.

Multiple extension updates fail on v3.6.13, Win 7 desktop box...

  • 1 èsì
  • 11 ní àwọn ìṣòro yìí
  • 7 views
  • Èsì tí ó kẹ́hìn lọ́wọ́ the-edmeister

rsgriff
rsgriff
more options

Firefox could not install the file at

http://releases.mozilla.org/pub/mozilla.org/addons/1865/adblock_plus-1.3.3-fn+fx+sm+tb.xpi

because: Unexpected installation error Review the Error console log for more details -203 same error message (specific to extension) occurred for:

'''Firefox could not install the file at http://releases.mozilla.org/pub/mozilla.org/addons/1865/adblock_plus-1.3.3-fn+fx+sm+tb.xpi because: Unexpected installation error Review the Error console log for more details -203 ''' same error message (specific to extension) occurred for:

All Replies (1)

the-edmeister
the-edmeister
more options

http://kb.mozillazine.org/Unable_to_install_themes_or_extensions_-_Firefox#Unexpected_installation_error_-203