# Revocation file download not possible
**URL:** https://forum.duniter.org/t/revocation-file-download-not-possible/12580
**Category:** Cesium
**Tags:** cesium, certifications
**Created:** [17 October 2024 15:17 UTC](https://forum.duniter.org/t/revocation-file-download-not-possible/12580 "2024-10-17T15:17:12Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@Nerine](https://forum.duniter.org/u/Nerine)
#### Post date: [17 October 2024 15:17 UTC](https://forum.duniter.org/t/revocation-file-download-not-possible/12580/1 "2024-10-17T15:17:12Z")
I have Cesium v1.7.13 on my iPhone. Registering for full G1-membership I could not download the required revocation file in my phone.
It was also not possible to install Cesium on my computer. I have a MacBook Pro, 15" from 2013.
What to do?
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### Author:  [@tuxmain](https://forum.duniter.org/u/tuxmain)
#### Post date: [17 October 2024 16:53 UTC](https://forum.duniter.org/t/revocation-file-download-not-possible/12580/2 "2024-10-17T16:53:57Z")
I don’t know about Cesium on iPhone, only that on Android it was not always possible to export the revocation file.
The easiest way to install Cesium on a laptop is to install the Firefox addon.
All the installation methods are accessible at [cesium.app](http://cesium.app).
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### Author:  [@Nerine](https://forum.duniter.org/u/Nerine)
#### Post date: [18 October 2024 18:38 UTC](https://forum.duniter.org/t/revocation-file-download-not-possible/12580/3 "2024-10-18T18:38:54Z")
Thanks Tuxmain. I have installed the Firefox addon and try to open the Cesium app there, but the app doesn’t open. Instead I keep winding up in all kinds of technical stuff in French, like “GitHub” or codes or I get thrown back to the opening page where it wants me to click on “télécharger cesium 1.7.13” for the 10th time. Any ideas?
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### Author:  [@tuxmain](https://forum.duniter.org/u/tuxmain)
#### Post date: [18 October 2024 20:32 UTC](https://forum.duniter.org/t/revocation-file-download-not-possible/12580/4 "2024-10-18T20:32:24Z")
In fact it is also available for Safari and Chrome. What is your browser? I said Firefox but you can pick the one corresponding to the browser you’re using or it won’t work.
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### Author:  [@Nerine](https://forum.duniter.org/u/Nerine)
#### Post date: [18 October 2024 21:08 UTC](https://forum.duniter.org/t/revocation-file-download-not-possible/12580/5 "2024-10-18T21:08:11Z")
Duh. Of course I tried first using my browser. I did Safari and installed Chrome because it was suggested by Duniter. Nothing works. There was a notice that my MacBook needs some kind of extra, I forgot the name. Computer might just be too old. Seems like I won’t find help here. Stupid only because I can’t download the requested file.
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### Author:  [@matograine](https://forum.duniter.org/u/matograine)
#### Post date: [19 October 2024 04:26 UTC](https://forum.duniter.org/t/revocation-file-download-not-possible/12580/7 "2024-10-19T04:26:26Z")
Hi,
FF add-on is in version 1.7.10, Chromium addon in 1.7.9. I just tried on FF, I can create a member account and download the revocation file.
> [@Nerine](#):
>
> I keep winding up in all kinds of technical stuff in French, like “GitHub” or codes or I get thrown back to the opening page where it wants me to click on “télécharger cesium 1.7.13”
Can you give us a screenshot ?
> [@Nerine](#):
>
> There was a notice that my MacBook needs some kind of extra, I forgot the name.
At wat point did you get this notice ? Can you try to reproduce and give us more precise information ?