Test browser.* namespace with Chrome & Edge

[Jimadine]

Currently the extension uses the chrome.* namespace. The extension works in Firefox because:

Firefox also supports the chrome.* namespace for APIs that are compatible with Chrome, primarily to assist with porting

Source

However, ideally the browser.* namespace should be used but it's unclear whether Chrome supports this:

Note: The browser namespace is supported by Firefox and Safari. Chrome does not offer the browser namespace, until Chrome bug 798169 is resolved.

Source

This github issue suggests support for browser.* namespace was merged earlier in the year, so there's a fair chance the general release of Chrome now supports it.

Microsoft Edge appears to already support the browser.* namespace:

Microsoft Edge uses the browser namespace, but doesn't yet support promise-based asynchronous APIs. In Edge, for the time being, asynchronous APIs must use callbacks.

Source

[Jimadine]

Seemingly Chromium 131.0.6778.86 doesn't have the needed change:

Uncaught ReferenceError: browser is not defined

[Jimadine]

Next best thing is:

const xbrowser = chrome ?? browser;

...as suggested here.

[Jimadine]

The above choose chrome as the default namespace, whuch we don't want. If I change the order (const xbrowser = browser ??chrome;) it doesn't work in Chromium:

Uncaught ReferenceError: browser is not defined

This works:

if (typeof browser === "undefined") {
  var xbrowser = chrome;
} else {
  var xbrowser = browser;
}

[Jimadine]

Fixed in 3b38d4a.