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Addons cant install

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I had problem with Firefox. He was slow, i reseted, but my addons disappear. Now i have problem, i can install any addon's. Doesnt matter, official or unofficial. I cant anything. Firefox was again reseted, uninstalled and again installed. No matter what i do, come this massage:

"Installation aborted because the add-on appears to be corrupt."

I had problem with Firefox. He was slow, i reseted, but my addons disappear. Now i have problem, i can install any addon's. Doesnt matter, official or unofficial. I cant anything. Firefox was again reseted, uninstalled and again installed. No matter what i do, come this massage: "Installation aborted because the add-on appears to be corrupt."
Angefügte Screenshots

Ausgewählte Lösung

Thank you for answers. I had to much work to try solutions @jscher2000. I have automatic clock and date set. Few years before i had the same problem, didint see my clock was incorect. But with that problem, everything was good. Today i on my computer, to see that maybe work your first solution.

I dont know still what happend, One week i can't install my addons, now i turn on firefox and addons i was trying install, now are installed. I dont know how, i didint do anything. I only know that yesterday nothing work, today work everything.

Thank you @jscher2000 for help.

Ps. Sorry for my bad english. I live in Germany for few years nad my english little rusted. But still i understand better english than german, only problem with writing and talking. But reading still better.

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Alle Antworten (4)

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Do you run ESET security software? Some version(s) of ESET have been blocking add-on installs, but I haven't been watching the status of a fix for that.

Here's a link to view recent threads: eset add-ons

Geändert am von jscher2000 - Support Volunteer

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I had turn off Eset, didint help. Next I unistalled Eset, doesnt work too.

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Okay, here are two older issues:

(1) Connection issue

If you right-click the Add to Firefox button and use Save Link As, can Firefox successfully download the file?

(2) Verification issue

One reason for verification to fail is if your computer clock is set to a date well in the future or the past.

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Ausgewählte Lösung

Thank you for answers. I had to much work to try solutions @jscher2000. I have automatic clock and date set. Few years before i had the same problem, didint see my clock was incorect. But with that problem, everything was good. Today i on my computer, to see that maybe work your first solution.

I dont know still what happend, One week i can't install my addons, now i turn on firefox and addons i was trying install, now are installed. I dont know how, i didint do anything. I only know that yesterday nothing work, today work everything.

Thank you @jscher2000 for help.

Ps. Sorry for my bad english. I live in Germany for few years nad my english little rusted. But still i understand better english than german, only problem with writing and talking. But reading still better.

Geändert am von anderworld55555

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