> ## Documentation Index
> Fetch the complete documentation index at: https://docs.merciasquill.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Browser Extension

> Learn how to configure the Mercia's Quill browser extension to control how your data is stored and managed

## Installation

<Tabs>
  <Tab title="Chromium">
    For all <Tooltip tip="Chrome, Brave, Opera, etc.">Chromium-based</Tooltip> browsers, you can install the Mercia's Quill extension from the native [Chrome Web Store](https://merciasquill.com/extension?chromium).
  </Tab>

  <Tab title="Microsoft Edge">
    For Microsoft Edge, you can install the Mercia's Quill extension from the native [Edge Add-ons](https://merciasquill.com/extension?edge), or the [Chrome Web Store](https://merciasquill.com/extension?chromium).

    <Note>
      Edge Add-ons can take up to 2 weeks longer than the Chrome Web Store to
      approve any updates to extensions.
    </Note>
  </Tab>

  <Tab title="Mozilla Firefox">
    For Mozilla Firefox, you can install the Mercia's Quill extension from the
    native [Firefox Add-ons](https://merciasquill.com/extension?firefox).
  </Tab>

  <Tab title="Apple Safari">
    <Info>
      Due to Apple's developer costs of \$99/year, Mercia's Quill will not be
      supported in Safari for the foreseeable future. Consider installing a
      different browser to sync your data.
    </Info>
  </Tab>

  <Tab title="Other">
    Did we miss a browser? Let us know by reaching out in our Discord [support server](https://merciasquill.com/support).
  </Tab>
</Tabs>

***

## Credential Storage Options

Mercia's Quill's extension allows you to configure where your [cookies](/tabs/guides/sea-of-thieves-api/authentication#authentication-values) from seaofthieves.com will be copied to. By default, the extension will use server-side storage unless explicitly opted out.

<Columns cols={2}>
  <Column>
    <Card title="Server-Side Storage" icon="server">
      Your cookies from [seaofthieves.com](https://seaofthieves.com) will be
      copied for storage internally in Mercia's Quill's databases. This method
      will also enable background [fetching cycles](#fetch-cycles).
    </Card>
  </Column>

  <Column>
    <Card title="Client-Side Storage" icon="desktop">
      Your cookies from [seaofthieves.com](https://seaofthieves.com) will be
      copied for storage locally in your browser. Mercia's Quill's backend
      servers will never be able to see your rat token.
    </Card>
  </Column>
</Columns>

***

## Fetch Cycles

Fetch cycles happen in the background when opting into server-side storage and periodically update your sea of thieves data. You are allowed the options of refreshing every 12, 24, 48, or 72 hours, or <Tooltip tip="set to 0">never</Tooltip>. If you want to graph your data without manually refreshing, this is the ideal method with server-side credential storage.