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"this addon could not be downloaded because of a connection failure"

  • 6 replies
  • 2 have this problem
  • 144 views
  • Last reply by Eli Dumitru

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i cant download and install addons from third party websites like sticky password and alexa and real debrid etc.....

this message shows up

"this addon could not be downloaded because of a connection failure"

i did reinstall firefox without any success

i cant download and install addons from third party websites like sticky password and alexa and real debrid etc..... this message shows up "this addon could not be downloaded because of a connection failure" i did reinstall firefox without any success

Chosen solution

No problems here with installing the Alexa Toolbar for Firefox. Maybe your security software is blocking it.

Try to save the file via the right-click context menu.


It is possible that (anti-virus) security software is causing the problem. Try to disable security software temporarily to see if that makes a difference.

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All Replies (6)

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It is possible that these extensions aren't signed properly.

Can you post a link to a publicly accessible page (i.e. no authentication or signing on required)?

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https://www.alexa.com/toolbar?browser=firefox

does firefox his new policy preventing addons form third party sites form installing ?

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cor-el said

It is possible that these extensions aren't signed properly. Can you post a link to a publicly accessible page (i.e. no authentication or signing on required)?


https://www.alexa.com/toolbar?browser=firefox

does firefox his new policy preventing addons from third party sites from installing ?

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Chosen Solution

No problems here with installing the Alexa Toolbar for Firefox. Maybe your security software is blocking it.

Try to save the file via the right-click context menu.


It is possible that (anti-virus) security software is causing the problem. Try to disable security software temporarily to see if that makes a difference.

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cor-el said

No problems here with installing the Alexa Toolbar for Firefox. Maybe your security software is blocking it. Try to save the file via the right-click context menu.

It is possible that (anti-virus) security software is causing the problem. Try to disable security software temporarily to see if that makes a difference.


thank for your help

it was bitdefender encrypted web scan setting i just disable it and it worked

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I disabled all of Bitdefender, but I still got the same error message and the update is still not installed.