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I can't download any add ons

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jgrider
 
Posts: 50
Joined: May 8th, 2016, 6:59 am

Post Posted May 14th, 2019, 8:29 am

Hello,
I don't understand much about computers and much less about what what F.F. is doing lately.
I've tried to download add ons and I get a message with any one I try that says.

"Download failed. Please check your connection. "

I don't understand. I'm on line and I'm logged in. And I have the latest, 56.0 version of F.F.

I'd appreciate any help.
I'm 90% computer illiterate

DanRaisch
Moderator

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Posts: 121871
Joined: September 23rd, 2004, 8:57 pm
Location: Somewhere on the right coast

Post Posted May 14th, 2019, 8:50 am

Version 56.0 is far from the latest version of Firefox. The current release version is 66.0.5. You might try updating to that and trying again to install extensions.

skuddle
 
Posts: 87
Joined: September 8th, 2012, 9:46 am

Post Posted May 14th, 2019, 9:25 am

jgrider wrote:Hello,
I don't understand much about computers and much less about what what F.F. is doing lately.
I've tried to download add ons and I get a message with any one I try that says.

"Download failed. Please check your connection. "


Messages like that one are useless. Might as well say "Something went wrong".

jscher2000

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Posts: 10701
Joined: December 19th, 2004, 12:26 am
Location: Silicon Valley, CA USA

Post Posted May 14th, 2019, 10:25 am

In case you haven't heard, there have been issues installing add-ons since late in the day May 3rd.

* https://blog.mozilla.org/addons/2019/05/04/update-regarding-add-ons-in-firefox/
* https://www.jeffersonscher.com/ffu/armagadd-on_2_0.html

therube

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Posts: 19951
Joined: March 10th, 2004, 9:59 pm
Location: Maryland USA

Post Posted May 15th, 2019, 5:34 am

I've tried to download add ons

From where?
Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US; rv:1.9.1.19) Gecko/20110420 SeaMonkey/2.0.14 Pinball CopyURL+ FetchTextURL FlashGot NoScript

MozillaMonkey
 
Posts: 306
Joined: April 21st, 2008, 7:52 pm

Post Posted May 15th, 2019, 7:41 pm

Try this fix:

Type about:config in the firefox address bar.

After a warning about what you are getting into, and your confirmation, a page opens with a search box at the top.

Search for:

xpinstall.signatures.required

The value set for it will be *TRUE*

Double click the line to toggle it to *FALSE*.

Exit the page. Your Addons may work now.

jscher2000

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Posts: 10701
Joined: December 19th, 2004, 12:26 am
Location: Silicon Valley, CA USA

Post Posted May 15th, 2019, 8:11 pm

MozillaMonkey wrote:xpinstall.signatures.required

That is not a fix, that is a blinder that prevents you from knowing validly signed extensions from unsigned ones. Also, it's only supported in ESR releases.

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