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updatedAt: 2025-10-23T08:21:43.000Z
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# Chrome extension

Use the Taboola Chrome extension to verify that pixels are fired.

# Overview

If you hit obstacles with the [Testing Tool](https://developers.taboola.com/pixel/docs/testing-tool), use the Chrome extension for basic troubleshooting.

> 📘 Conversion types
>
> Use this flow to verify *event-based conversions* (which use *event pixels*) on your **web pages**.

<Callout icon="👍" theme="okay">
  This flow is suitable for both technical _and_ non-technical users.
</Callout>

# Install the extension

1. Install the `Taboola Pixel Helper` extension from the <a href="https://chrome.google.com/webstore/detail/taboola-pixel-helper/aefiepimkogajhddmhcekceihikjcabd?hl=en" target="_blank">Chrome Web Store</a>.
2. Make sure that the `Taboola Pixel Helper` <img src="https://files.readme.io/928a93a5b0cbb2cf38749efd0d0668ee24f4730221fab463f01f7f51dbb3f3f5-image.png" /> is visible (*to the right of the address bar*).

   > If it is not showing, click on `extensions` <img src="https://files.readme.io/297106d13546070dfe2b4c96f478765b3abcb85f54c4ff6d0287e7d5e7acfcf5-image.png" /> and pin it <img src="https://files.readme.io/1d56c9877838974060eb8dc79f49b770cebcb772aa0b0dc5e70964167cba4c83-image.png" />.

# Workflow

> 📘 Incognito window
>
> Sometimes, it can be useful to test in an incognito window. See [Tips & techniques](#incognito-window) (*below*).

1. Browse to your landing page and move through the various stages of your conversion funnel.
2. At each stage of the funnel, check the `Taboola Pixel Helper` extension:
   1. Note the event count in the browser toolbar.
      > E.g. <img style={{display:'inline'}} src="https://files.readme.io/f71f05b795b6aae345ee3a4fcfbe00ec293d36eb52193d760a861c60a25e6d50-image.png" />
   2. Verify that the expected events were fired:
      > For the [ *base* pixel](https://developers.taboola.com/pixel/docs/the-base-pixel), verify that the `page_view` event is fired.\
      > For [*event* pixels](https://developers.taboola.com/pixel/docs/event-pixels), verify that the specific events are fired.
   3. Make sure no errors or warnings are shown.
      > See: [Icons](#icons) and  [Status messages](#status-messages) (*below*)
3. Everything looks in order? You can now verify that the events are received in [Realize](https://developers.taboola.com/pixel/docs/verify-in-taboola-ads).

## Icons

The `Taboola Pixel Helper` extension uses the following status icons:

<Table align={["left","left","left"]}>
  <thead>
    <tr>
      <th>
        Icon
      </th>

      <th>
        Status
      </th>

      <th>
        Description
      </th>
    </tr>
  </thead>

  <tbody>
    <tr>
      <td>
        <img class="pixel-extension-status-icon" src="https://files.readme.io/d3e3078b890144a0cee2fcba66478c49f8c08cbd0db97f8e5c268eebfa6f5b34-image.png" align="center" />
      </td>

      <td>
        OK
      </td>

      <td>
        The pixel fired successfully.
      </td>
    </tr>

    <tr>
      <td>
        <img class="pixel-extension-status-icon" src="https://files.readme.io/72737d659acb194e519f0a606f0366faee359e4c13093e782bc16676b39e3726-image.png" align="center" />
      </td>

      <td>
        Error
      </td>

      <td>
        An error occurred.
      </td>
    </tr>

    <tr>
      <td>
        <img class="pixel-extension-status-icon" src="https://files.readme.io/29ac3fd5d1ebf3548a1a157f4654bdb6426eda862c4363124489c1e11816220d-image.png" align="center" />
      </td>

      <td>
        Warning
      </td>

      <td>
        An issue was detected, that

        _might_

        require corrective action.
      </td>
    </tr>

    <tr>
      <td>
        <img class="pixel-extension-status-icon" src="https://files.readme.io/9356ae32b91de29cc4bb848bb92896108f51adbb9ed011d08a165b94b568350c-image.png" align="center" />
      </td>

      <td>
        Informational
      </td>

      <td>
        Depending on the context, this

        _might_

        require corrective action.
      </td>
    </tr>
  </tbody>
</Table>

## A common pitfall

> 📘 Switching tabs
>
> 1. If you switch back and forth between tabs, the `Taboola Pixel Helper` extension may stop showing events for the current page.
> 2. In that case, close and reopen the tab:
>    > `Cmd + W` and   `Cmd + Shift + T` on a Mac\
>    > `Ctrl + W` and `Ctrl + Shift + T` on Windows

# Status messages

If you encountered issues while testing, look for the relevant message below.

## No pixel found

> **Type**: `Informational` <img class="pixel-extension-status-icon" src="https://files.readme.io/9356ae32b91de29cc4bb848bb92896108f51adbb9ed011d08a165b94b568350c-image.png" />

<Image align="center" border={false} width="400px" src="https://files.readme.io/d75275e6a92c5141c33a74e91257ec84c872ee7bc5dec54220dcef7f980c4b01-image.png" />

> 📘 Troubleshooting
>
> 1. Confirm that you installed the [base pixel](https://developers.taboola.com/pixel/docs/the-base-pixel) on this page.
>    > If your are using **GTM**, confirm that the relevant **GTM** container code exists on this page.\
>    > **Note**: the same **GTM** container tag must be present on *all* pages within your funnel - e.g. both your landing page *and* your website pages.
> 2. If the base pixel *is* installed on the page, close and reopen the tab.
>    > The `Taboola Pixel Helper` extension should now display the page load event.

## Invalid Account ID

> **Type**: `Error` <img class="pixel-extension-status-icon" src="https://files.readme.io/72737d659acb194e519f0a606f0366faee359e4c13093e782bc16676b39e3726-image.png" />

<Image align="center" border={false} width="400px" src="https://files.readme.io/1163f4000638013e36ef02ea3430d1f39d1697dbda8cdffd4a1e210986de7bfd-image.png" />

> 📘 Troubleshooting
>
> Make sure you entered the Account ID for the correct account (i.e. the account that you are using to track conversions).
>
> > See: [Your Account ID](https://developers.taboola.com/pixel/docs/your-account-id)

## Taboola pixel was found, but nothing was fired

> **Type**: `Warning` <img class="pixel-extension-status-icon" src="https://files.readme.io/29ac3fd5d1ebf3548a1a157f4654bdb6426eda862c4363124489c1e11816220d-image.png" />

<Image align="center" border={false} width="400px" src="https://files.readme.io/d3637601fc003e04536e53b60c6016fc0589432b075eaa86d56d0e0b1be225af-image.png" />

> 📘 Troubleshooting
>
> 1. This is often a quirk with the `Taboola Pixel Helper` extension - i.e. not an issue with your page.
> 2. To confirm this, close and reopen the current tab:
>    > `Cmd + W` and   `Cmd + Shift + T` on a Mac\
>    > `Ctrl + W` and `Ctrl + Shift + T` on Windows

> 📘 Additional troubleshooting
>
> If the issue persists:
>
> 1. Test in an [incognito window](#incognito-window) (to ensure that an ad blocker is not interfering).
> 2. [Verify with Chrome DevTools](https://developers.taboola.com/pixel/docs/verification-network-traffic).

> 📘 Technical note
>
> The `tfa` object was loaded, but a `page_view` event was not detected by the `Taboola Pixel Helper` extension.

## Pixel activated multiple times

> **Type**: `Error` <img class="pixel-extension-status-icon" src="https://files.readme.io/72737d659acb194e519f0a606f0366faee359e4c13093e782bc16676b39e3726-image.png" />

<Image align="center" border={false} width="400px" src="https://files.readme.io/d3899098312940dfaac071d473d81ff80021668fe52ed6bc6467716721fbf64c-image.png" />

> 📘 Troubleshooting
>
> Check with your developer that the trigger has been set up correctly, and is firing once per event.

## Pixel took too long to load

> **Type**: `Warning` <img class="pixel-extension-status-icon" src="https://files.readme.io/29ac3fd5d1ebf3548a1a157f4654bdb6426eda862c4363124489c1e11816220d-image.png" />

<Image align="center" border={false} width="400px" src="https://files.readme.io/e30790b131c405c1c473a77ec10c267f832f1090a18fc87068e49baa1cc63db8-image.png" />

> 📘 Note
>
> This warning indicates that the `page_view` event took 3 seconds or more to fire.

> 📘 Troubleshooting
>
> Make sure that you inserted the base pixel code in the `<head>` section of the page, as high as possible.
>
> > If you are using **GTM**. make sure that the **GTM container** code  is in the `<head>` section of the page, as high as possible.

# Tips & techniques

## Incognito window

Sometimes, it can be useful to test your conversion funnel within an incognito window:

1. Right-click on the `Taboola Pixel Helper` <img src="https://files.readme.io/928a93a5b0cbb2cf38749efd0d0668ee24f4730221fab463f01f7f51dbb3f3f5-image.png" /> and select `Manage Extension`.
2. Check the `Allow in Incognito` option:

   <Image align="left" border={true} width="400px" src="https://files.readme.io/2680405d708c3f1639534c1210faae2425b78e2fb76fb675dd2a06fec170a7c9-image.png" className="border" />
3. Open your landing page in an incognito window.