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Firefox has removed Video Download Helper and add-ons manager doesn't allow me to re-install it (message "download failure" when download OK from elswhere)

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A few days ago, I noticed that the Video Download Helper button was removed. Using the add-ons manager I tried to re-install it unsuccessfully The message is "Échec du téléchargement. Veuillez vérifier votre connexion" (download failure. Please check your connection). I checked my connection which is perfect ; downloads from other sites are running correctly I tried to download other download helper modules. The only possible one is "Video Downloader professional" which is not easy to use compared to Video Download Helper. Is there a solution to re-install it ?

A few days ago, I noticed that the Video Download Helper button was removed. Using the add-ons manager I tried to re-install it unsuccessfully The message is "Échec du téléchargement. Veuillez vérifier votre connexion" (download failure. Please check your connection). I checked my connection which is perfect ; downloads from other sites are running correctly I tried to download other download helper modules. The only possible one is "Video Downloader professional" which is not easy to use compared to Video Download Helper. Is there a solution to re-install it ?

Chosen solution

https://support.mozilla.org/en-US/kb/update-firefox-latest-version?cache=no Did you update Firefox to the latest version 66.0.4 May 5, 2019 Fixes add-on certificate issue. 66.0.5 May 7, 2019 Further improvements to re-enable web extensions


or if you can't update; https://support.mozilla.org/en-US/questions/1258165#answer-1218833 fixed the issue for my v54.

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Additional System Details

Installed Plug-ins

  • Shockwave Flash 32.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:63.0) Gecko/20100101 Firefox/63.0

More Information

FredMcD
  • Top 10 Contributor
4190 solutions 58502 answers

Chosen Solution

https://support.mozilla.org/en-US/kb/update-firefox-latest-version?cache=no Did you update Firefox to the latest version 66.0.4 May 5, 2019 Fixes add-on certificate issue. 66.0.5 May 7, 2019 Further improvements to re-enable web extensions


or if you can't update; https://support.mozilla.org/en-US/questions/1258165#answer-1218833 fixed the issue for my v54.

https://support.mozilla.org/en-US/kb/update-firefox-latest-version?cache=no Did you update Firefox to the latest version '''66.0.4''' May 5, 2019 Fixes add-on certificate issue. '''66.0.5''' May 7, 2019 Further improvements to re-enable web extensions or if you can't update; https://support.mozilla.org/en-US/questions/1258165#answer-1218833 fixed the issue for my v54.
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Question owner

Hi Fred, Thanks a lot for your advice The automatic FF version update did not propose the 66.0.5 version, but after updating manually using your link, everything is OK now.

Hi Fred, Thanks a lot for your advice The automatic FF version update did not propose the 66.0.5 version, but after updating manually using your link, everything is OK now.
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FredMcD
  • Top 10 Contributor
4190 solutions 58502 answers

Glad to help. Safe Surfing.

Glad to help. Safe Surfing.
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