Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Mozilla サポートの検索

サポート詐欺に注意してください。 私たちはあなたに通話やショートメッセージの送信、個人情報の共有を求めることはありません。疑わしい行為を見つけたら「迷惑行為を報告」からご報告ください。

詳しく学ぶ

このスレッドはアーカイブに保管されました。 必要であれば新たに質問してください。

Firefox won't let me install F.B. Purity but it works with other browsers.

  • 4 件の返信
  • 1 人がこの問題に困っています
  • 209 回表示
  • 最後の返信者: roadcykler
  • 解決済み

I'm trying to add the F.B. Purity extension but I get a "connection failure" message. When I use different browsers, it works fine. Lately FF has become more troublesome, not allowing videos or even showing some pictures. Very frustrating.

I'm trying to add the F.B. Purity extension but I get a "connection failure" message. When I use different browsers, it works fine. Lately FF has become more troublesome, not allowing videos or even showing some pictures. Very frustrating.

選ばれた解決策

Directly installing isn't side-loading, so that change doesn't apply if you are going to this page --

https://www.fbpurity.com/install.htm

-- and clicking the green button.

Is the connection failure before the first drop-down panel, or between the first and second drop-down panels?

Did you try the workaround suggested on the page for that?

Please note: If you get a "Connection failure" error when trying to install FBP, try this: "Right-click" on the "Install F.B. Purity" button and then click "Save link as" then save the .xpi extension to your computer. Next drag the .xpi file from the saved location into Firefox's "about:addons" Extensions management page.

That should, after a brief delay, trigger the second drop-down panel pictured above.

この回答をすべて読む 👍 0

すべての返信 (4)

Hi roadcykler, Firefox is currently undergoing changes to extension sideloading:

https://blog.mozilla.org/addons/2019/10/31/firefox-to-discontinue-sideloaded-extensions/

So it looks like if you're an every day user who doesn't know programming or other more detailed stuff, you're just left in the lurch. I've never even heard of "sideloading" until I read that. Interesting that the vast majority of the responses are negative but apparently Mozilla doesn't care and imposes their will on the actual users. Sad and pathetic.

選ばれた解決策

Directly installing isn't side-loading, so that change doesn't apply if you are going to this page --

https://www.fbpurity.com/install.htm

-- and clicking the green button.

Is the connection failure before the first drop-down panel, or between the first and second drop-down panels?

Did you try the workaround suggested on the page for that?

Please note: If you get a "Connection failure" error when trying to install FBP, try this: "Right-click" on the "Install F.B. Purity" button and then click "Save link as" then save the .xpi extension to your computer. Next drag the .xpi file from the saved location into Firefox's "about:addons" Extensions management page.

That should, after a brief delay, trigger the second drop-down panel pictured above.

Thank you. I don't recall seeing that info regarding the .xpi file when I was trying yesterday.