Firefox very slow before update
For a number of times over many years I noticed that Firefox becomes very slow when not updated for a long time, and then becomes fast after update. I don't rush to update it so sometimes I am using a version for months. Any idea how could I fix this strange behaviour?
Additional System Details
- The IcedTea-Web Plugin executes Java applets.
- Shockwave Flash 27.0 r0
- User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0