16.04 - Firefox with many tabs gets extremely slow - Ask Ubuntu


using ubuntu 16.04 64-bit, firefox 49.

firefox slow restart when many tabs open, although of them not loaded default (only 1 tab loaded in each window when restarting firefox).

firefox responds when many tabs open (however not loaded), when try example change tabs, load new tab, etc.

firefox freezes minute when try open new window (or malicious javascript it). when force new window close, takes firefox minute become responsive again.

all above faster when few tabs open or loaded in firefox.

as firefox ram goes beyond 5gb, gets slow respond. there still lot of free ram on system. what's point in getting more ram?

it looks fundamentally bad implementation:

  • unloaded tabs should not slow down application.

  • even loaded tabs should not slow down application when there plenty of free ram.

  • new window should not have load add-ons (it looks that's takes long time).

are there ways correct situation?


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