Install the Premiere
Panel
Get the Prysmor AI VFX extension running inside Adobe Premiere Pro in under 5 minutes, no build step, no signing required for local testing.
Overview
The Prysmor panel is a Common Extensibility Platform (CEP) extension , the same technology used by Adobe-built panels. Installation requires two things: enabling debug mode (so unsigned extensions load) and copying the panel folder to the right location.
Download
Get the ZIP for your OS from the dashboard
Copy Folder
Extract and move prysmor-panel/ to the CEP extensions directory
Open Panel
Restart Premiere → Window → Extensions → Prysmor
Windows Installation
Tested on Windows 10 and Windows 11 with Premiere Pro 2020–2024.
Enable unsigned extension loading
Open PowerShell (no admin required) and run:
Set-ItemProperty -Path "HKCU:\Software\Adobe\CSXS.10" -Name "PlayerDebugMode" -Value 1
If you're on Premiere 2022 or later, also run the CSXS.11 variant:
Set-ItemProperty -Path "HKCU:\Software\Adobe\CSXS.11" -Name "PlayerDebugMode" -Value 1
Alternatively, use Registry Editor (Win+R → regedit) and navigate to HKEY_CURRENT_USER\Software\Adobe\CSXS.10, add a DWORD named PlayerDebugMode with value 1.
Download and extract
Go to Dashboard → Downloads and download prysmor-panel-win.zip. Extract it to get the folder prysmor-panel/.
Copy to extensions directory
Copy the extracted folder to:
C:\Users\<your-username>\AppData\Roaming\Adobe\CEP\extensions\prysmor-panel\
The AppData folder is hidden by default. In File Explorer: View → Show → Hidden items, or paste the path directly into the address bar.
The folder name must be exactly prysmor-panel.
Restart Premiere Pro
Fully close Adobe Premiere Pro (not just the project) and reopen it.
Open the Prysmor panel
In Premiere Pro: Window → Extensions → Prysmor
Click Continue to Prysmor to enter demo mode.
Screenshot
Windows: Registry Editor with PlayerDebugMode = 1
macOS Installation
Tested on macOS 11+ (Big Sur, Monterey, Ventura, Sonoma) with Premiere Pro 2020–2024.
Enable unsigned extension loading
Open Terminal and run:
defaults write com.adobe.CSXS.10 PlayerDebugMode 1
For Premiere 2022+, also run:
defaults write com.adobe.CSXS.11 PlayerDebugMode 1
Download and extract
Download prysmor-panel-mac.zip from Dashboard → Downloads and double-click to extract.
Copy to extensions directory
Move the prysmor-panel/ folder to:
~/Library/Application Support/Adobe/CEP/extensions/prysmor-panel/
Quick access: In Finder press Cmd+Shift+G and paste the path above.
If CEP/extensions/ doesn't exist, create it.
Restart Premiere Pro
Quit Premiere Pro completely (Cmd+Q) and relaunch it.
Open the Prysmor panel
Window → Extensions → Prysmor
Screenshot
macOS: Terminal running defaults write com.adobe.CSXS.10 PlayerDebugMode 1
First Use (Demo Mode)
What to expect after the panel opens.
Login screen
Shows a "Continue to Prysmor" button. No API key or password needed.
Generate VFX
Type any prompt, choose aspect ratio and duration, click Generate. A ~9-second progress animation runs.
Result card
Shows a thumbnail (SVG placeholder). Import and Insert buttons become active.
Import to Project
Calls Premiere's importFiles() on the bundled demo clip. Requires a real MP4, see below.
Insert to Timeline
Imports and places the clip at the current playhead. A sequence must be open.
panel/assets/prysmor-demo.mp4 is a text placeholder. Replace it with a real H.264 MP4 (1920×1080, 4–8 sec) for Import and Insert to work.Troubleshooting
Common issues and fixes.
Prysmor doesn't appear in Window → Extensions
- Confirm PlayerDebugMode = 1 is set for the correct CSXS version (try both CSXS.10 and CSXS.11).
- The folder inside extensions/ must be named exactly prysmor-panel.
- Make sure CSXS/manifest.xml is present inside the folder.
- Restart Premiere Pro completely after copying the folder.
Import to Project / Insert fails with 'file not found'
- The bundled prysmor-demo.mp4 is a placeholder text file, replace it with a real MP4.
- The panel shows the exact ExtendScript error in a red toast message.
Insert to Timeline shows 'No active sequence'
- Open a sequence in the Premiere Timeline panel before clicking Insert to Timeline.
The panel appears blank / white
- The manifest.xml sets --allow-file-access-from-files which is required for loading local assets.
- Try removing and re-copying the extension folder, then restarting Premiere.