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my ff(esr) became very slow after update for begining to dowload pages

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My firefox suddenly became very slow after an update. On each web page I have to wait maybe 10s, and nothing happens, and after that all is ok (really fast). Safe-mode didn't help. Thanks, Piero

My firefox suddenly became very slow after an update. On each web page I have to wait maybe 10s, and nothing happens, and after that all is ok (really fast). Safe-mode didn't help. Thanks, Piero

Chosen solution

I respond to myself because it's now ok. I don't know exactly why...

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Chosen Solution

I respond to myself because it's now ok. I don't know exactly why...