If you are having trouble using copy and paste functions within the application, it is likely due to your browser's security settings or a missing extension. CustomBooks™ requires specific permissions to interact with your system clipboard.
Why is Copy and Paste not working?
This issue generally occurs for one of two reasons:
- Permissions Blocked: Your browser is preventing the app from accessing the clipboard (Chrome, Edge, Opera and Brave).
- Missing Extension: You are using Mozilla Firefox, which requires a specific helper extension to handle clipboard data.
How to Allow Clipboard Permissions (Chromium Browsers)
Google Chrome
Go to Chrome Settings and search for "Clipboard" (or paste chrome://settings/?search=Clipboard into your address bar).
Navigate to Site Settings → View permissions and data stored across sites.
Look for the custombooks.com dropdown and select it.
Open the entry for apps7.custombooks.com.
Find Clipboard in the list and select Allow from the dropdown menu.
Log out and log back in to CustomBooks™ for the changes to take effect.

Microsoft Edge
Go to Edge Settings and search for "Clipboard".
Click on Clipboard and toggle the switch to On for "Ask when a site wants to see text and images copied to the clipboard."
Return to CustomBooks™ and attempt to copy/paste.
When the popup appears asking if apps7.custombooks.com can see your clipboard, click Allow.

Brave
Go to Brave Settings and search for "Clipboard" (or paste brave://settings/?search=Clipboard into your address bar)
Navigate to Site and Shields Settings → View permissions and data stored across sites.
Look for the custombooks.com dropdown and select it.
Open the entry for apps7.custombooks.com.
Find Clipboard and set it to Allow.
Log out and log back in to CustomBooks™.

Installing the Browser Extension (Mozilla Firefox)
Firefox users must install the 1C: Enterprise extension to enable clipboard functionality, file system access, and cryptography features.
When you attempt to copy/paste in CustomBooks™, a prompt will appear. Click the "Go To" button, or click
this link to go to the
Firefox Add-ons page.
Click Add to Firefox to install the 1C: Enterprise extension.
Return to CustomBooks™ and attempt to copy/paste.
When the popup asks: "Allow apps7.custombooks.com access to clipboard?", click OK.
Note: The 1C: Enterprise extension is a secure tool that allows the application to interact with your local clipboard and system add-ins safely.