Jaxx is not really recommended as It's not fully open sourced. I'd go witth Electrum If I were you, It's with no doubt the best wallet for desktop. You have control over your private keys so make sure you are note doing any transactions during that period (check the forums and Reddit /r/bitcoin from time to time after 1st august to stay updated)

Continue to send support tickets and try to contact them through their official thread[1] or their twitter[2], always post the ticket number so they could check it for you fast but honestly, all bitcoin services start with an awesome support, as soon as they start making money and get more users, they put less effort and resources in support.

[1] https://bitcointalk.org/index.php?topic=229438.6340
[2] https://twitter.com/bitfinex

It could be a good idea to add a notice or something regarding the upcoming possible fork. We don't want to see spamming and false scam accusations against signature campaigns for not paying a few hours/days before 1st August or after (If a chain split occurs).

You may want to take this action like 24-48 hours before the event so you are sure that you won't have any stuck transactions without confirmation or sell orders etc. You should be fine leaving your altcoins there but as a general rule, Its never recommended to leave your coins at exchanges for a long period of time as they could get hacked but from the chain split perspective, nothing to be worried about.

It is no longer suggested to download the Bootstrap file anymore. It's better (and faster) to let the software download it and sync alone.

Rassah said that they are moving nodes, that's why It's currently down. Subdomains are accessible though: swish.mycelium.com for example.

In a recent ICO (NVO.io), I have seen a few reputable members escrowing the funds. For ethereum, It was Minerjones, I suggest you contact him, here is the thread: https://bitcointalk.org/index.php?topic=1917456.0;topicseen

The most used is BTC clearly, I believe Kraken are the only ones who uses XBT instead. We will definitely see new currency codes though If there is a chain split.

The address must already be stacked somewhere in your posts, If that's the case, follow this tutorial[1] If the address comes from the old wallet, or this[2] If the address comes from the new version (use at your own risk as mentioned).

[1] https://bitcointalk.org/index.php?topic=1467458.0
[2] https://bitcointalk.org/index.php?topic=990345.0#post_bci2

Encrypted with a password that you know? It's better to export them encrypted in that case because on plain text, anyone can open the file and take your bitcoins. It's worth mentioning that Its better to move to another wallet like Electrum (If you are using Multibit Classic because Its no longer being supported by the team or getting updates)

What are your preparations for 1st august? I know that the card balance shouldn't be affected on anyway but how about the account balance which is on bitcoin? or that's technically USD in the first place once the btc are deposited?

What are the things that you can't buy? I personally haven't find any issues buying anything. If you want to buy anything from Amazon, there is purse.io, If you are buying from eBay then buy their gift cards from gyft or somewhere else and redeem them and buy, If you want to buy games there is Steam and G2A, If you want to use a reship company there is Shipito, a hosting plan? Vultr.com, recharging your phone? Bitrefill and the list goes on and on. The fees are also back to normal, It's simply that people still using high fees or their wallets are not doing the necessary updates.

If by "setup" you mean changing them then you should go to the menu and go to the options, It should give you something like this:



I believe Ubuntu doesn't show menus, If that's the case, just maximize your wallet and It should appear on the top.

It's not that I support the idea of keeping coins inside exchanges, I'm actually totally against it. But why? I mean Poloniex has the highest trading volume, they charge fees (3 BTC = ~7000$) for each coin they add, they have fees for withdrawal, exchanging etc. If they are running for several years, It only means that It's profitable for them so why leave all that and steal users funds? It doesn't look logical to me. Greed, that much?

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The bitcoin fork is coming soon, I believe that educated people a little bit on how they shouldn't store their funds on exchanges and that should be valid for altcoins as well. As for your situation @OP, try to contact the support and see how things goes from there, If the trollbox is not disabled (It was, last time I checked) try to speak with moderators for faster answer.

You can see here the services that are supporting/ready for UASF: https://coin.dance/poli
There is a decent amount, and note that some exchanges and services didn't make any announcements regarding their standpoint from this whole fork story so we should wait more. In the meantime, anyone supporting UASF, should run a full node.

Exchanges takes time to handle withdrawals sometime, so Its better to do this at least 48 hours before 1st august to assure that you will receive your funds and they will get confirmed in time even If the fees were low.

That's not the case. We don't know If this is going to be the last fork or not but something for sure, the supply will remain the same.

I wouldn't recommend a service that I know is not trusted. It's worth mentioning that they got acquired by BTC.com btw.

I came across this and I must say, It definitely looks interesting. I have some concerns though:

1. If the USB stops working? I will lose everything or there is a way to recover?
2. Is it possible to sign addresses directly (without importing the private keys somewhere else)? If yes, the wallet must be sealed or not?
3. If unsealed, the private keys become directly visible on the first page or a button must be clicked?
4. I kinda know the answer, but just to confirm, If OpenDime goes down or something, I'm good since everything is on the device, right?

I'm not aware of the first two sites but block.io and blockchain.info are both known and trusted sites but when It comes to the limits that the API provides etc, I believe that Blocktrail is the best choice.