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A lightweight tab suspender that automatically puts inactive tabs to sleep after a set period, helping reduce Firefox's overall memory usage.

This extension improves browser performance by automatically suspending inactive tabs, reducing memory and CPU usage. It offers flexibility with customizable settings and user-defined exceptions.

Features:

Tab Suspension

• Automatic Suspension: Inactive tabs are automatically suspended after a user-defined delay (default: 1 minute). Suspended tabs are replaced with a custom suspension page that stores the original URL and title.
• Suspend Current Tab: Instantly suspend the currently active tab.
• Suspend All Other Tabs: Suspend all tabs except the current one.
• Suspension Timer Configuration: Users can set a custom delay in hours and minutes for when tabs should be discarded.

Toggle Options

• Enable "Tab Suspender Mini": Lightweight mode for basic suspension functionality.
• Enable Screenshots: Toggle screenshot capturing on or off during suspension.

Exception Handling

• Domain Exceptions: Maintain a list of domains that will not be suspended. The extension checks URLs against this list before suspending tabs.
• Easy Domain Management: Add and manage exception domains directly from the extension popup.

Special Cases

• Audio Playback Protection: Tabs playing audio will not be suspended to avoid interruptions.
• Browser-Specific URLs: Ignores certain internal browser URLs (e.g., about:, chrome:, moz-extension:) to ensure smooth operation.

Full code: https://github.com/mawnir/tab_suspender_mini