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addons.mozilla.org won't install add-ons, asks for a newer version of Firefox (it says I'm using 36.0), even though I have the latest version (59.0.2).

Posted

El Capitan (10.11.6), Firefox 59.0.2

addons.mozilla.org won't install this add-on (https://addons.mozilla.org/en-US/firefox/addon/anonymox/?src=search), asks for a newer version of Firefox (it says I'm using 36.0), even though I have the latest version (59.0.2). Switching "privacy.resistFingerprinting" to "true" has no effect, except that addons.mozilla.org now sees it as 52.0 (I still need 56.0 or higher).

El Capitan (10.11.6), Firefox 59.0.2 addons.mozilla.org won't install this add-on (https://addons.mozilla.org/en-US/firefox/addon/anonymox/?src=search), asks for a newer version of Firefox (it says I'm using 36.0), even though I have the latest version (59.0.2). Switching "privacy.resistFingerprinting" to "true" has no effect, except that addons.mozilla.org now sees it as 52.0 (I still need 56.0 or higher).

Chosen solution

Your useragent in your More System Details on right of post. Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0

https://support.mozilla.org/en-US/kb/how-reset-default-user-agent-firefox

Either you have both 36.0.x and 59.0.2 installed and started up 36.0.x or your useragent was modified in some way either manually or by a useragent switcher extension for example.

Read this answer in context 1

Additional System Details

Installed Plug-ins

  • Shockwave Flash 29.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0

More Information

James
  • Moderator
1593 solutions 11223 answers

Chosen Solution

Your useragent in your More System Details on right of post. Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0

https://support.mozilla.org/en-US/kb/how-reset-default-user-agent-firefox

Either you have both 36.0.x and 59.0.2 installed and started up 36.0.x or your useragent was modified in some way either manually or by a useragent switcher extension for example.

Your useragent in your More System Details on right of post. Mozilla/5.0 (Windows NT 6.3; WOW64; rv:'''36.0''') Gecko/20100101 Firefox/'''36.0''' https://support.mozilla.org/en-US/kb/how-reset-default-user-agent-firefox Either you have both 36.0.x and 59.0.2 installed and started up 36.0.x or your useragent was modified in some way either manually or by a useragent switcher extension for example.
cor-el
  • Top 10 Contributor
  • Moderator
17336 solutions 156754 answers

Helpful Reply

Since you state that toggling "privacy.resistFingerprinting" has effect, it is very likely that you have a stuck user agent and need to reset general.useragent.override via the right-click context menu to the default value as stated in the above mentioned article.

Best if to leave resist fingerprinting disabled to avoid issues with websites like in this case with the Add-ons website. I think that there is a bug to blacklist the Add-ons website to disable spoofing the user agent in this case.

Since you state that toggling "privacy.resistFingerprinting" has effect, it is very likely that you have a stuck user agent and need to reset general.useragent.override via the right-click context menu to the default value as stated in the above mentioned article. Best if to leave resist fingerprinting disabled to avoid issues with websites like in this case with the Add-ons website. I think that there is a bug to blacklist the Add-ons website to disable spoofing the user agent in this case.