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AdBlock Plus increases start time from 4 to 12 seconds...
I have 12 addons on my latest FF. One of them is AdBlock Plus latest version. With all disabled, FF strats fresh after max 3.5 seconds. Enabling Adblock Plus makes FF fresh start after 10 second... This seems rather an extreme slow down...
Enabling all other (11) addons, just increase the fresh start with about 1/2 second...
Wubrane rozwězanje
Check with the Adblock Plus support forum.
http://adblockplus.org/forum/
Wšykne wótegrona (2)
Wubrane rozwězanje
Check with the Adblock Plus support forum.
http://adblockplus.org/forum/
However,it took some effort to find the right action. Referring directly to the right AdBlock site would be more helpful.
https://adblockplus.org/development-builds/faster-firefox-startup/
Now you have it.