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.

Cari Bantuan

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.

Pelajari Lebih Lanjut

how can I download Firefox 52.2.1 (64 bit)? I have software (necessary for work) that runs on that version. And how can I prevent FF from overriding this ver

more options

I do use the latest version of FF. but today the older version was wiped out. This seems to happen frequently,, but I've been able to find a version of 52.2.1

Today I can't seem to locate this version.

BTW: The work software requires Silverlight. There's a bug somewhere, as the Silverlight "Can't be found and needs to be installed". But the new version of FF states Silver is already installed.

Yes, I know - the work software is horrible and is the problem!

I do use the latest version of FF. but today the older version was wiped out. This seems to happen frequently,, but I've been able to find a version of 52.2.1 Today I can't seem to locate this version. BTW: The work software requires Silverlight. There's a bug somewhere, as the Silverlight "Can't be found and needs to be installed". But the new version of FF states Silver is already installed. Yes, I know - the work software is horrible and is the problem!

Solusi terpilih

The last version of Firefox that runs Silverlight is the Extended Support Release of Firefox 52 (52.9.0esr, I think). This article has the link to the server with old versions: Install an older version of Firefox.

That version is not supported for use on the wilds of the web. You could consider using a "Portable" version of Firefox 52 (which is isolated in its own folder) for that one application instead of rolling back Firefox for all of your browsing. See: https://portableapps.com/apps/internet/firefox-portable-legacy-52

Another option is to use Internet Explorer 11 for Silverlight applications.

Baca jawaban ini dalam konteks 👍 2

Semua Balasan (1)

more options

Solusi Terpilih

The last version of Firefox that runs Silverlight is the Extended Support Release of Firefox 52 (52.9.0esr, I think). This article has the link to the server with old versions: Install an older version of Firefox.

That version is not supported for use on the wilds of the web. You could consider using a "Portable" version of Firefox 52 (which is isolated in its own folder) for that one application instead of rolling back Firefox for all of your browsing. See: https://portableapps.com/apps/internet/firefox-portable-legacy-52

Another option is to use Internet Explorer 11 for Silverlight applications.