Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

I was running Foxfire 3.6.9 and wanted to use FTP Program add-on and it did not appear to load but appeared but then would be installed but not run or appear under tools. So I deleted Foxfire 3.6.9 and down loaded to 3.5.9 so it could get FTP and it is do

  • 1 reply
  • 12 have this problem
  • 4 views
  • Last reply by cor-el

more options

I was running Foxfire 3.6.9 and wanted to use FTP Program add-on and it did not appear to load but appeared but then would be installed but not run or appear under tools. So I deleted Foxfire 3.6.9 and down loaded to 3.5.9 so it could get FTP and it is doing the same could not install. Even after I registered my copy. The last time I used this program it showed up under tools and worked great. any suggestions on whats going on and how I can get around this?.by ralphd3g

I was running Foxfire 3.6.9 and wanted to use FTP Program add-on and it did not appear to load but appeared but then would be installed but not run or appear under tools. So I deleted Foxfire 3.6.9 and down loaded to 3.5.9 so it could get FTP and it is doing the same could not install. Even after I registered my copy. The last time I used this program it showed up under tools and worked great. any suggestions on whats going on and how I can get around this?.by ralphd3g

All Replies (1)

more options

Delete the files extensions.* (extensions.rdf, extensions.cache, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry. See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions If you see disabled extensions that are not compatible on the next start in "Tools > Add-ons > Extensions" then click the "Find Updates" button to do a compatibility check.