This effectively makes the file empty and then read-only so Firefox cannot write to it anymore.Įvery object loaded (html page, jpeg image, css stylesheet, gif banner) is saved in the Firefox cache for future use without the need to download it again. Here is a simple solution to avoid it for now and ever. If you remove all the urlclassifier* files, you may find out that urlclassifier3.sqlite keeps growing again after a certain time. Removing all urlclassifier* files can prevent the use of megabytes of storage in your firefox profile. ( urlclassifier* files do not exist as of Firefox 64+.) (Discuss in Talk:Firefox/Tweaks) Reason: This advice seems not need anymore. If you are experiencing rendering issues with up-to-date drivers on your machine, you can force-enable Software Webrender by setting the preference to true in about:config. If your system does not meet these requirements it will fallback to software rendering using Software Webrender. As of Firefox 93, it is enabled by default for all users and uses hardware rendering by default if the hardware it is running on supports at least OpenGL 3.0 or OpenGL ES 3.0 (as of 2021-04) and meets minimum driver requirements. It is the compositor that powers Firefox and the Servo browser engine project. WebRender is a high-performance, GPU-accelerated 2D rendering engine written in Rust. $ ps -e | grep 'Web Content' 13991 tty1 00:00:04 Web Content In this case the Content process limit for the current user has been increased to 4: However you may want to manually adjust this setting to increase performance even further or decrease memory usage on low-end devices. Īdjusting these settings can be done in Preferences or by changing the value to 1-8 and to false manually in about:config. For additional information see these MozillaZine articles.įirefox automatically uses settings based on the computer's hardware specifications. This section contains advanced Firefox options for performance tweaking.
Note: Listed options may only be available for the latest version of Firefox.
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