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Can't install latest version of add-on

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Hello? I can't install Zenmate VPN add-on(https://addons.mozilla.org/ko/firefox/addon/zenmate-vpn/) though my Firefox is up to date(ver. 57.0). This version of add-on requires at least Firefox ver. 56.0 or later. When I go to this webpage(https://addons.mozilla.org/en-US/firefox/user/zenmate/), I only can choose the older version of add-on. But when I try to install the older version, the error 'This version of add-on is not compatible with your Firefox' emerges. I don't understand why I can't install it.

Hello? I can't install Zenmate VPN add-on(https://addons.mozilla.org/ko/firefox/addon/zenmate-vpn/) though my Firefox is up to date(ver. 57.0). This version of add-on requires at least Firefox ver. 56.0 or later. When I go to this webpage(https://addons.mozilla.org/en-US/firefox/user/zenmate/), I only can choose the older version of add-on. But when I try to install the older version, the error 'This version of add-on is not compatible with your Firefox' emerges. I don't understand why I can't install it.
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Ausgewählte Lösung

Then go ahead with my previous suggestion to uninstall, cleanup and reinstall.

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Anwendung

  • User-Agent: Mozilla/5.0 ComVoy (Windows NT 10.0; WOW64; rv:52.0.2) Gecko/20100101 Firefox/52.0.2

Weitere Informationen

safemanusa 5 Lösungen 76 Antworten
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Hi Jerryhan,

Sorry you were having issues. Since Firefox is now using a new engine all of the add-ons needed to go to web extensions. BUT you are in luck! Go to this link for the installer. https://addons.mozilla.org/en-US/firefox/addon/zenmate-vpn/

If I can be of any more assistance please let me know!

jerryhan1206 said

Hello? I can't install Zenmate VPN add-on(https://addons.mozilla.org/ko/firefox/addon/zenmate-vpn/) though my Firefox is up to date(ver. 57.0). This version of add-on requires at least Firefox ver. 56.0 or later. When I go to this webpage(https://addons.mozilla.org/en-US/firefox/user/zenmate/), I only can choose the older version of add-on. But when I try to install the older version, the error 'This version of add-on is not compatible with your Firefox' emerges. I don't understand why I can't install it.
Hi Jerryhan, Sorry you were having issues. Since Firefox is now using a new engine all of the add-ons needed to go to web extensions. BUT you are in luck! Go to this link for the installer. https://addons.mozilla.org/en-US/firefox/addon/zenmate-vpn/ If I can be of any more assistance please let me know! ''jerryhan1206 [[#question-1189949|said]]'' <blockquote> Hello? I can't install Zenmate VPN add-on(https://addons.mozilla.org/ko/firefox/addon/zenmate-vpn/) though my Firefox is up to date(ver. 57.0). This version of add-on requires at least Firefox ver. 56.0 or later. When I go to this webpage(https://addons.mozilla.org/en-US/firefox/user/zenmate/), I only can choose the older version of add-on. But when I try to install the older version, the error 'This version of add-on is not compatible with your Firefox' emerges. I don't understand why I can't install it. </blockquote>

Geändert am von safemanusa

Fragesteller

I went to the link you sent(https://addons.mozilla.org/en-US/firefox/addon/zenmate-vpn/), but I still couldn't install it.

I went to the link you sent(https://addons.mozilla.org/en-US/firefox/addon/zenmate-vpn/), but I still couldn't install it.
safemanusa 5 Lösungen 76 Antworten
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Hi JerryHan1206,

Your system reports that you are still using Firefox 52. See screen capture from your system that I can see.

Solution

Please uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved.

You can get Firefox 57 Final Release from here : fileforum.betanews.com/detail/Mozilla-Firefox-for-Windows/1032985422/1

Please let us know if this solved your issue or if need further assistance.


jerryhan1206 said

I went to the link you sent(https://addons.mozilla.org/en-US/firefox/addon/zenmate-vpn/), but I still couldn't install it.
Hi JerryHan1206, Your system reports that you are still using Firefox 52. See screen capture from your system that I can see. '''Solution''' Please uninstall Firefox. Then Delete the Mozilla Firefox Folders in C:\Program Files and C:\Program Files(x86) Then restart system. Then run Windows Disk Cleanup. Then run it again and click the button that says Cleanup System Files. Note: your Firefox Profile is saved. You can get Firefox 57 Final Release from here : <strike>fileforum.betanews''.''com/detail/Mozilla-Firefox-for-Windows/1032985422/1</strike> Please let us know if this solved your issue or if need further assistance. ''jerryhan1206 [[#answer-1038466|said]]'' <blockquote> I went to the link you sent(https://addons.mozilla.org/en-US/firefox/addon/zenmate-vpn/), but I still couldn't install it. </blockquote>

Geändert am von cor-el

jscher2000
  • Top 10 Contributor
8700 Lösungen 71110 Antworten
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Hilfreiche Antwort

Did you turn on this preference: privacy.resistFingerprinting ? That will cause Firefox to report itself to websites as Firefox 52.

If it's not that, please see whether this article helps: How to reset the default user agent on Firefox.

Did you turn on this preference: '''privacy.resistFingerprinting''' ? That will cause Firefox to report itself to websites as Firefox 52. If it's not that, please see whether this article helps: [[How to reset the default user agent on Firefox]].
safemanusa 5 Lösungen 76 Antworten
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Hilfreiche Antwort

Thanks for your help!

jscher2000 said

Did you turn on this preference: privacy.resistFingerprinting ? That will cause Firefox to report itself to websites as Firefox 52. If it's not that, please see whether this article helps: How to reset the default user agent on Firefox.
Thanks for your help! ''jscher2000 [[#answer-1038471|said]]'' <blockquote> Did you turn on this preference: '''privacy.resistFingerprinting''' ? That will cause Firefox to report itself to websites as Firefox 52. If it's not that, please see whether this article helps: [[How to reset the default user agent on Firefox]]. </blockquote>

Fragesteller

Thanks for your replying. But I didn't know about that preference. Could you tell me where I can find it?

Thanks for your replying. But I didn't know about that preference. Could you tell me where I can find it?

Geändert am von jerryhan1206

safemanusa 5 Lösungen 76 Antworten
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jerryhan1206

To change setting for 'privacy.resistFingerprinting'

Type About:Config in URL Search for privacy.resistFingerprinting Double click to change from True to False

jerryhan1206 To change setting for 'privacy.resistFingerprinting' Type About:Config in URL Search for privacy.resistFingerprinting Double click to change from True to False

Geändert am von safemanusa

Fragesteller

I found that its value was False

safemanusa said
Thanks for your help! jerryhan1206 To change setting for 'privacy.resistFingerprinting' Type About:Config in URL Search for privacy.resistFingerprinting Double click to change from True to False jscher2000 said
Did you turn on this preference: privacy.resistFingerprinting ? That will cause Firefox to report itself to websites as Firefox 52. If it's not that, please see whether this article helps: How to reset the default user agent on Firefox.
I found that its value was False <blockquote> ''safemanusa [[#answer-1038472|said]]'' <blockquote> Thanks for your help! jerryhan1206 To change setting for 'privacy.resistFingerprinting' Type About:Config in URL Search for privacy.resistFingerprinting Double click to change from True to False ''jscher2000 [[#answer-1038471|said]]'' <blockquote> Did you turn on this preference: '''privacy.resistFingerprinting''' ? That will cause Firefox to report itself to websites as Firefox 52. If it's not that, please see whether this article helps: [[How to reset the default user agent on Firefox]]. </blockquote> </blockquote> </blockquote>
safemanusa 5 Lösungen 76 Antworten
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Ausgewählte Lösung

Then go ahead with my previous suggestion to uninstall, cleanup and reinstall.

Then go ahead with my previous suggestion to uninstall, cleanup and reinstall.
jscher2000
  • Top 10 Contributor
8700 Lösungen 71110 Antworten
Veröffentlicht

Don't forget to also check the user agent: How to reset the default user agent on Firefox.

Don't forget to also check the user agent: [[How to reset the default user agent on Firefox]].

Fragesteller

Thanks for your all reply! I finally solved this problem. Thank you very much! :)

Thanks for your all reply! I finally solved this problem. Thank you very much! :)
safemanusa 5 Lösungen 76 Antworten
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Glad to hear it!

Glad to hear it!