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Change language on web pages

Some web sites offer content in multiple languages. You can choose several languages in Firefox and they will be treated in order of priority. In order to change the priority, just go to Tools > Options..., select the General section and click the Languages button.

Select and copy individual table cells

While holding down the Ctrl key, you can select table cells. Just click on any non-link portion of the cell. You can select multiple cells, either by clicking individually on the cells you want to select or by just dragging with the mouse. Once selected, you can use Copy and Paste just like you would on a text selection.

Speed up page rendering

By default, Firefox doesn't try to render a web page for 250 milliseconds while it's waiting for data. If you add the code below to your user.js file, Firefox immediately starts to display the page, even without complete data. The drawback, especially on slower machines, is that the total time to display the page will be longer.

// Last value in milliseconds (default is 250)
user_pref("nglayout.initialpaint.delay", 0);

Enable Pipelining

Pipelining is an experimental feature, designed to improve page-load performance, that is unfortunately not well supported by some web servers and proxies. To try it out, add the following code to your user.js file:

// Enable pipelining:
user_pref("network.http.pipelining", true);
user_pref("network.http.proxy.pipelining", true);
user_pref("network.http.pipelining.maxrequests", 8);

Specify where to store the cache

To specify in which folder the cache is stored, add the following code to your user.js file:

// Path to Cache folder:
user_pref("browser.cache.disk.parent_directory","C:\\Path To Cache");

Remember to use two backslashes for the path separators if you're using Windows, e.g. C:\\Path\\Path To Cache instead of C:\Path\Path To Cache.

Specify the memory cache usage

Normally, Firefox determines the memory cache usage dynamically based on the amount of available memory. To specify a specific amount of memory cache, add the following code to your user.js file:

// Specify the amount of memory cache:
// -1 = determine dynamically (default), 0 = none, n = memory capacity in kilobytes
user_pref("browser.cache.memory.capacity", 4096);

To disable the memory cache completely, add the following code:

// Disable memory cache:
user_pref("browser.cache.memory.enable", false);

Labels: Firefox