* Browser storage limits: [[https://developer.mozilla.org/de/docs/Web/API/IndexedDB_API/Browser_storage_limits_and_eviction_criteria|..mozilla]]

**Firefox**
  * **>> about:support, >> about:performance, >> about:serviceworkers, ...**
  * [[https://addons.mozilla.org/en-US/firefox/addon/modify-headers/|modify-headers]] 
    * etwa: Opera/9.80 (Windows Mobile; WCE; Opera Mobi/WMD-50255; U; en) Presto/2.4.13 Version/10.00
    * Mozilla/5.0 (iPhone; U; CPU like Mac OS X; en) AppleWebKit/420+ (KHTML, like Gecko) Version/3.0 Mobile/1A543a Safari/419.3
    * suche: user agent string firefox 
  * Alternativ: [[https://addons.mozilla.org/de/firefox/addon/user-agent-switcher/|user-agent-switcher]]
  * Rust //(neue Programmiersprache)//: [[https://de.wikipedia.org/wiki/Rust_(Programmiersprache)|..wp]]