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nobadbrowser Plugin

Compatible with DokuWiki

  • 2022-07-31 "Igor" unknown
  • 2020-07-29 "Hogfather" unknown
  • 2018-04-22 "Greebo" yes
  • 2017-02-19 "Frusterick Manners" yes

plugin Displays a warning when the visitor uses a bad web browser.

Last updated on

Similar to noiewarning

Tagged with !experimental, maintenance

The nobadbrowser is the spiritual successor to plugin:noiewarning. It shows a special warning when the visitor is using a bad web browser, but this warning is not only limited to Internet Explorer - now it also includes Google Chrome, Chrome expies or “reskins” like the post-Presto Opera Browser, Microsoft Edge and Safari.


Install the plugin using the Plugin Manager and the download URL above, which points to latest version of the plugin. Refer to Plugins on how to install plugins manually.

Prerequisites: Pre-release versions required browscap support in PHP. If you are unsure if your current PHP installation supports browscap, you can check the output of phpinfo(). Enabling browscap support in VPS providers that don't have it is outside the scope of this document. It is recommended you upgrade the plugin.


You don't need to do anything else after installing the plugin.

In order to check that it works, you need to visit your dokuwiki installation using a browser recognized as a “bad browser”, or fake one via a mechanism such as an user agent switcher extension.

:!: Public Demo: See the plugin in action at my DokuWiki demos (of course, visit with a bad browser or fake one).

Configuration and Settings

As of present, no configuration options are available.

For final release it is intended to reuse the config options already available in plugin:noiewarning, meaning it will be possible for the wiki administrator to recommend a good web browser (which by default will be Mozilla Firefox).

Bad Browsers

The plugin will warn about usage of the following browsers, and offer a redirect to this page where it is explained why these browsers are bad.

Other browsers might be added to the warning list in the future.

At present the plugin does not show information about why a browser is dangerous, instead only directing to this page. This may change in the future if it can be done in a non-invasive way.

Internet Explorer

The plugin warns against Internet Explorer for versions 10 and below. Internet Explorer was the browser included by default in older versions of the MS Windows operating system.

Reasons include:

  • Low security and high exploitability (ActiveX, example) in general
  • Bad overall performance
  • Severe lack of standards compliance, for years breaking web sites and forcing providers and developers to use code specifically for this browser
  • Abuse of advantageous market position (back in its time).
  • Abuse of manufacturer position by tightly integrating the browser into the operating system's internals.
  • Creator was involved in antitrust lawsuits (eg.: United States v. Microsoft Corp.
  • As of 2020 too old and superseded by Microsoft Edge

Google Chrome

The plugin warns against usage of Google Chrome any and all versions. Google Chrome is a Webkit-based browser by Google/Alphabet, one of the megacorps in the world recognized among the most dangerous for user security and privacy.

Reasons include:

The plugin also warns in case the browser is detected to be a “Chrome expy” or “Chrome reskin” - that is, Google Chrome but with some cosmetic touches for branding. Because these touches are limited merely to branding, in as much as the plugin can detect, these browsers are still Google on the inside and thus considered bad or dangerous for the same reasons.

These reskins include browsers such as Opera (see below), Microsoft Edge, Avast Secure Browser, Android WebView, Brave Browser, etc.

Opera Browser

The plugin warns against usage of the Opera browser for versions later than (not lower than) 12.

Reasons include:

  • Versions later than 12 (dropping the “Presto” engine) are simply a Google Chrome reskin, subjects to al the other issues of that particular browser (see google_chrome)
  • Owner involved in security breaches and scandals.


Starting Nov 2020, the plugin warns against usage of the Safari web browser, and in general against any browser that identifies itself as having been built for Apple Inc.

Reasons include:

  • Apple uses walled-garden techniques and special market pricing to keep its userbase hostage in their technology stack (hardware + software).
  • Apple forces all browser makers to use Apple's own backend and rendering for browsers in their ecosystem. This means the entire Apple ecosystem has a single point of failure for both privacy and browser capacity that is not controlled by the end user.
  • Apple has removed request control capability from Safari, making it incompatible with most forms of privacy measures.


Raise issues or feature requests in the bug tracker. More general discussion can go below ↓.

plugin/nobadbrowser.txt · Last modified: 2022-09-03 03:12 by

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