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Firefox Installation

Method 1: Firefox Add-ons​

Install directly from the Firefox Add-ons store for automatic updates and the most stable experience.

Nightly & Manual Installation​

Use these methods if you want the absolute latest features (Nightly) or need to install TablissNG on a version of Firefox where the store is unavailable.

.xpi vs .zip
  • .xpi files: These are compiled Firefox extensions. All .xpi files distributed in our releases are signed by Mozilla, meaning they can be installed permanently in any version of Firefox.
  • .zip files: These contain the raw extension source code. These are generally used for Temporary Installation (Method 3), but can sometimes be installed permanently depending on your browser (Method 4).

Method 2: Manual Installation​

Nightly Signed Build

For the latest experimental features, you can install the Signed Nightly build. This version is signed by Mozilla and will work on standard Firefox releases.

(Current version: v1.6.5.0)

From a .xpi​

  1. Go to the Releases page.
  2. Find the latest release (or nightly-auto for experimental features).
  3. Download the .xpi file:
    • Nightly: tablissng-X.X.X.X.xpi
    • Stable: tabliss-firefox.xpi
  4. In most cases this should automatically prompt you to install the extension 🎉. If not, then continue as follows:
  5. In Firefox, go to about:addons.
  6. Click the gear icon (⚙️) and select "Install Add-on from File...".
  7. Select the downloaded .xpi file.

From a .zip​

If you have a .zip file, it is unsigned.

  • On standard Firefox: You must use Method 3 below to install it temporarily.
  • On Developer Edition/Forks: You may be able to install it permanently using Method 4.

Note: to get the absolute latest builds, you can download from GitHub Actions.

Method 3: Temporary Installation (Standard Firefox)​

If you want to test a build without permanent installation (e.g., from a .zip file), you can load it temporarily.

  1. Open Firefox and type about:debugging in the address bar.
  2. Click "This Firefox" in the sidebar.
  3. Click "Load Temporary Add-on...".
  4. Select the .zip file.

Note: The extension will be removed when you restart Firefox.

Method 4: Permanent Unsigned (Dev Edition & Forks)​

Firefox Developer Edition, Nightly, and many forks (like Zen) allow you to bypass signature requirements permanently:

  1. Type about:config in the address bar and click "Accept the Risk and Continue".
  2. Search for xpinstall.signatures.required.
  3. Double-click the preference to set it to false.
  4. You can now install unsigned .zip or .xpi files via Method 2 and they will remain installed after a restart.

Updating & Switching Versions​

How to Update​

Standard installations via the Firefox Add-ons store should update automatically.

To force an update check:

  1. Open Firefox and go to about:addons.
  2. Click the gear icon (⚙️) in the top right.
  3. Select "Check for Updates".
  4. This will trigger an update check for all installed extensions.
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To update a manual installation, you can simply navigate to the Releases page in Firefox and click on the .xpi file. Firefox will automatically detect it as an update and prompt you to install it.

Switching Between Versions (Stable ↔ Nightly)​

If you want to switch between Stable and Nightly builds, or manually update to a newer release without losing your settings, follow these steps:

  1. Download the new version's .xpi file.
  2. Open Firefox and go to about:addons.
  3. Click the gear icon (⚙️) and select "Install Add-on from File...".
  4. Select the new .xpi file.

Because TablissNG uses a consistent extension ID, Firefox will treat this as an update to your existing installation, and all your settings will be preserved!

Switching Versions & Data Loss

If you are moving from a Nightly or Manual build back to the Store version, please be aware:

  • Browsers most likely will not let you easily switch back to the store version.
  • Installing the store version over a manual build may require you to delete the existing one first.
  • This will delete all your settings and data.

Before switching, always export your settings from the TablissNG dashboard to ensure you don't lose your configuration.