temp-link-opener

background.js

// Create the context menu item when the extension is installed
browser.contextMenus.create({
  id: "open-link-temporarily",
  title: "Open Link temporarily",
  contexts: ["link"]
});

// Track tabs that should be auto-closed
const tempTabs = new Map();

// Handle context menu clicks
browser.contextMenus.onClicked.addListener((info, tab) => {
  if (info.menuItemId === "open-link-temporarily" && info.linkUrl) {
    // Open the link in a new background tab
    browser.tabs.create({
      url: info.linkUrl,
      active: false // Don't focus the new tab
    }).then((newTab) => {
      // Schedule the tab to close after 2 seconds
      const timeoutId = setTimeout(() => {
        browser.tabs.remove(newTab.id).catch(() => {
          // Ignore errors if tab was already closed
        });
        tempTabs.delete(newTab.id);
      }, 2000);

      // Store the timeout ID in case we need to cancel it
      tempTabs.set(newTab.id, timeoutId);
    });
  }
});

// Clean up if the user manually closes the tab before the timeout
browser.tabs.onRemoved.addListener((tabId) => {
  if (tempTabs.has(tabId)) {
    clearTimeout(tempTabs.get(tabId));
    tempTabs.delete(tabId);
  }
});

manifest.json

{
  "manifest_version": 2,
  "name": "Temporary Link Opener",
  "version": "1.0",
  "description": "Open links temporarily in background tabs that auto-close after 2 seconds",

  "permissions": [
    "contextMenus",
    "tabs"
  ],

  "background": {
    "scripts": ["background.js"]
  },

  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
        "id": "[email protected]",
        "data_collection_permissions": {
          "required": ["none"]
         }
      }
  }
}